The mean and standard deviation of the sample data collected on continuous variable are -0.25 and 0.03, respectively. The following table shows the
relative frequencies of the data in the given intervals.
Interval
Relative Frequency
0.02
0.15
0.33
-0.34 < x < -0.31
-0.31 <<< -0.28
-0.28 << -0.25
-0.25 < 3 < -0.22
-0.22 <3 < -0.19
-0.19 <<< -0.16
0.36
0.11
0.03
Based on the table, do the data support the use of a normal model to approximate population characteristics?
A Yes, because the sum of the relative frequencies is 1.00.
B
Yes, because the distribution of relative frequencies is very close to the empirical rule for normal models.
с
No, because the values are negative and normal models are used for positive values.
D
No, because the distribution of relative frequencies is very far from the empirical rule for normal models.
E
No, because the sample size and the population parameters are not known.

Answers

Answer 1

Answer:

B

Step-by-step explanation:

I know because I know that how

Answer 2

The correct answer is D. No, because the distribution of relative frequencies is very far from the empirical rule for normal models.

What is Mean?

The sum of all values divided by the total number of values determines the mean (also known as the arithmetic mean, which differs from the geometric mean) of a dataset. The term "average" is frequently used to describe this measure of central tendency.

To determine if the data supports the use of a normal model to approximate population characteristics, we need to examine the relative frequencies and see if they exhibit a bell-shaped or normal distribution.

Looking at the table, we see that the relative frequencies are not symmetrical and do not follow the empirical rule for normal models.

The largest relative frequency is in the interval from -0.28 to -0.25, and the frequencies decrease as we move away from this interval. Additionally, there are negative values in the data, which is not a characteristic of normal models.

Therefore, the correct answer is D. No, because the distribution of relative frequencies is very far from the empirical rule for normal models.

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Related Questions

WILL MARK BRAINLIEST TO THE BEST ANSWERS. The interior angles of a pentagon measure x°, (2x)°, (2.5x)° , (x + 10)° , and (2x + 20)°. Determine the value of x. PLEASE SHOW ALL SOLUTIONS NESSICARY. THANK YOU.......

Answers

Answer:

x=60

Step-by-step explanation:

The sum of interior angles of a regular Pentagon is 540°

x+2x+2.5x+x+10+2x+20=540

8.5x=540-30

8.5x=510

x=510/8.5=60

Answer:

x = 60°

Step-by-step explanation:

Sum of interior angles of a regular polygon is:

180°(n-2)

Pentagon has 5 sides, so sum of angles is:

180°(5-2) = 180°*3 = 540°

For the given pentagon we have sum of angle measures as below, and solving for x:

x + 2x + 2.5x + (x +10) + (2x + 20) = 540°8.5x + 30° = 540°8.5x = 510°x = 510°/8.5x = 60°

Help me hurry please
Giving points

Answers

Increased:B,E
Decreased:A,D
Stayed the same:C
B and E increased. A and D decreased, and C stayed the same. :)

Jackson biked k kilometers. Maria biked 8 more kilometers than Jackson. Peter biked 2 fewer kilometers than Jackson.

Drag and drop the expressions into the boxes to write an expression that represents the total number of kilometers Jackson, Maria, and Peter biked in all.

k
8
12
k+2
k+8
k+10
k-2
k-8

Answers

Answer:

Step-by-step explanation:

The expression for the total distance covered.

k + (k + 8) + (k - 2)

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Distance biked:

Jackson = k

Maria = k + 8

Peter = k - 2

Now,

The total distance biked.

= k + k + 8 + k - 2

= 3k + 6

= 3 (k + 2)

Thus,

The total distance covered is 3 (k + 2).

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There are about 16 kilometers in 10 miles. About how many kilometers are in 5 miles! HELP ​

Answers

Answer:

8 kilometers

Step-by-step explanation:

Since 5 is half of 10, then do 16/2 to find how many kilometers.

Answer:

8

Step-by-step explanation:

16 kilometres in 10 miles (divide by 10 to find 1)

  1.6km                         1 mile

   8(times1.6 by 5)                                   5 miles

please mark as brainliest!!!

Which rational function has vertical asymptotes at x=-3 and 9,a horizontal asymptote at y=1, and an x-intercept of 0?
•h(x)=x^2/x^2-6x-27

Answers

Answer:

Yes that function does •h(x)=x^2/x^2-6x-27

Step-by-step explanation:

Yes that function does •h(x)=x^2/x^2-6x-27

Wilson is 6 years older than Mary. Wilson's age is 10 years less than five times Mary's age. The equations below model the relationship between Wilson's age (w) and Mary's age (m):

w = m + 6
w = 5m − 10

Which is a possible correct method to find Wilson's and Mary's ages?

Solve w + 6 = 5w − 10 to find the value of w.
Write the points where the graphs of the equations intersect the x axis.
Solve m + 6 = 5m − 10 to find the value of m.
Write the points where the graphs of the equations intersect the y axis.

Answers

Answer:

no 4=f

Step-by-step explanation:

dwfn sdv and it appers to be marys age ;)

think before you do something rude

Answer:  

C. Solve m + 6 = 5m - 10  

Step-by-step explanation:  

Wilson is 6 years older than Mary.  

(MARY's age + 6 = WILSON's age)  

Wilson's age is 10 years less than five times Mary's age.  

(MARY's age * 5 - 10years = WILSON's age)

(Mary is 4 years old and Wilson is 10:  

4 + 6 = 10  

4(5) = 20 - 10 = 10  

just in case you were curious)

Good luck!!

A line with a slope of 1/3 passes through (-5,r) and (4,1).
To make this work correctly, the value of r=

Answers

Answer:

r=-2

Step-by-step explanation:

your welcome :D also if there's another answer could you give me brainliest pls

Can you please help me with this???

Answers

Answer:

SQT = 100

Step-by-step explanation:

A full circle equals 360 degrees, when the other angles are added up 140 + 120 = 260 which is 100 off of 360 meaning the last angle is that 100 degrees.

The ratio of children to adults in a supermarket is 1 : 5
There are 15 children in the supermarket.
How many adults are in the supermarket?
pls answer quickly thanks :)

Answers

Answer: There are 75 Adults in the supermarket ask me why if you want a full on explanation. The full on reason of why it is 75 is because if you have a ratio of 1:5 and you now the one is for the kids and it is 15. Then you add 15 from 1 until you get to the 5th ratio. Hence, it brings you all the way to 75 adults. I hope this helped you, and anyone else

Step-by-step explanation:

Describe and correct the error in using properties of parallelograms.

Answers

Answer/Step-by-step explanation:

Opposite angles of a parallelogram are equal to each other.

Therefore, <S = <U, and <T = <V

Consecutive angles of a parallelogram are supplementary.

Therefore,

m<S + m<V = 180°

50° + m<V = 180°

m<V = 180° - 50° (subtraction property of equality)

m<V = 130°

maya joins two peices of wood together one peice is 36 inches long the total lenght of both peices is 62 how long is the other peice of wood


help ;-;...

Answers

Answer: 26

Step-by-step explanation:

62-36=26

Answer: 26

You simply have to subtract 36 from 62

3
Regina writes the expression y +9.
4
Which expression is equivalent to the one Regina
writes?
A (9.3 : 4) + y
B 9+ y(3:4)
C (y +9)(3-4)
D None of these

Answers

Answer:

a

Step-by-step explanation:

if you do it right it is a

the answer would be (9•3 divided by 4)+y which is A

Helppp!!
What is the value of the missing angle?

Answers

Answer:

105

Step-by-step explanation:

all angles inside a triangle add up to equal 180, the inside angle at R is 75 degrees, the TP line is obviously a 180 degree angle, because it's just a straight line, so you subtract 75 from 180 to get 105

hope this helps :)

what is the value of x? -6x=90
Please show you got the answer

Answers

Answer:

-15

Step-by-step explanation:

-6x = 90

x = 90 ÷ -6

x = -15

Answer:

X = -15

Step-by-step explanation:

90/-6 is equal to -15.

You divide the number from the side with the variable from the other side of the = sign.

Sneakers at Mr lou's garage sale cost the same price. alexander paid $90.52 for four pairs. How many pairs of sneakers did justin buy if he paid $135.78? write a proportion and use cross products to solve for d, the number of sneakers that David bought.

Answers

Answer 6

Step-by-step explanation:

I found the answer on calculator

Manny wants to find ways to reduce his current debt. The table below shows Manny’s monthly income, expenses and net income.


Monthly Budget
Amount
Income
Wages
$3,000.00
Expenses
Rent
$1,200.00

Utilities
$269.34

Entertainment
$220.00

Food/Clothes
$368.00

Cell Phone
$89.42

Credit Card #1
$94.62

Credit Card #2
$36.18

Car Insurance
$80.00

Car Payment
$300.00

Gym Membership
$25.00
Net Income

$317.44


After evaluating Manny’s monthly budget, which of the following would be the best option to reduce his debt?
a.
Manny could spend less on entertainment each month and put the money towards a new cell phone.
b.
Manny could pay the minimum monthly payments on his credit cards and put the money towards his car payment.
c.
Manny could spend less on food and clothes and put the money towards his credit card payment.
d.
Manny could cut his utlility costs and put the money towards buying a new house.

Answers

Answer:

c.  Manny could spend less on food and clothes and put the money towards his credit card payment.

Step-by-step explanation:

Edge 2021

Based on the information given, Manny can reduce his current debt by: C. Manny could spend less on food and clothes and put the money towards his credit card payment.

What is a credit card?

A credit card refers to a small rectangular-shaped plastic card that is issued by a financial institution (banks) to its customers, which allows them to purchase goods and services on credit, especially based on the agreement that the amount of money taken would be paid later with an agreed upon interest rate.

How to calculate monthly payment.

Mathematically, the monthly payment for a credit card is given by this formula:

[tex]M=P(\frac{r}{1-(1+r)^{-nt}} )[/tex]

Where:

P is the principal.r is the interest rate.M is the monthly payment.t is the time.n is the number of times it's compounded.

In this scenario, Manny can reduce his current debt by spending less amount of money on both food and clothes while putting the money towards his credit card payment.

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Given D'E'F'G' is a dilation of DEFG, find the scale factor of dilation.

Answers

Answer:

7.5

Step-by-step explanation:

157.5/21 = 7.5

write the slope-intercept form of the equation of the line.

Answers

Answer: y=x+2

Step-by-step explanation:

ok, so the points from the graph in the picture that i used were (0, 2) and (-2, 0).

(0, 2) is the y-intercept, which will replace b.

y=mx+2

the slope of the line is 1.

y=1x+2

y=x+2

please actually help me. ill give brainliest if you explain your answer.

Answers

Answer:

subtract 11 from both sides

Step-by-step explanation:

-3x+11=44

-3x=33

x=-11

Answer:

Subtract 11 from both sides

Step-by-step explanation:

[tex]-3x+11=44\\\\Subtract 11 from both sides\\-3x+11-11=44-11\\\\simplify\\\\-3x=33\\\\Divide both sides by -3\\\frac{-3x}{-3} =\frac{33}{-3} \\x=-11[/tex]

The length of a ship is 247 metres, correct to the nearest metre.
Write down the minimum length of the ship.

Answers

Answer:

246.50

Step-by-step explanation:

Select the equation that represents the graph above.


y=x√−2y is equal to square root of x minus 2 , ,


y=x√+2y is equal to square root of x plus 2 , ,


y=x+2y is equal to x plus 2 , ,


y=x+2−−−−−√

Answers

Answer:

                                                          _

just did the test and got it right its /x + 2

Step-by-step explanation:

just did the test i cant make the simble though but the right answer is the one where the line is only above the x oh wait actually i see your questions know my delete key broke soooo its the 2nd option

What is the measure of the missing angle?

Answers

23.3 is the exact answer

Could you write 9 inches and 180 as a ratio?

Answers

Answer:

9:120 but if simplified 1:20

Step-by-step explanation:

I hope this helps

The cost of a mobile phone processor is directly proportional to its speed.

A 2GHz mobile costs £500.

Let x be the speed of a processor in GHz

Let y be the cost in pounds.

Find a formula linking the variables.

Answers

Answer: See explanation

Step-by-step explanation:

We are going to use the formula used in calculating direct proportion which is equal to:

y = kx

where,

x = speed of a processor in GHz

y = the cost in pounds

Therefore, y = kx

500 = 2k

Therefore, y = 2k

I need help fast thank you all!!

Answers

Answer:

b = 5.2

c = 3.5

Step-by-step explanation:

By 45°- 45° - 90° triangle theorem:

[tex]c = \frac{1}{ \sqrt{2} } \times 5 \\ \\ c = \frac{1}{ 2} \times 5 \sqrt{2} \\ \\ c = 2.5 \times 1.414\\ \\ c = 3.535 \\ \\ c \approx \: 3.5[/tex]

By 30°- 60° - 90° triangle theorem:

[tex] b = \frac{ \sqrt{3} }{2} \times (2 \times 3) \\ \\ b = 3 \sqrt{3} \\ \\ b = 3 \times 1.732 \\ \\ b = 5.196 \\ \\ b \approx 5.2[/tex]

Find the exact length of the third side.
35
28

Answers

Answer:

44.821869662

Step-by-step explanation:

3х - 2y = 1 in standard form

Answers

Answer:

y= (3x-1)/2

Step-by-step explanation:

PLEASE HELP ASAP!!

The graph represents which system of inequalities?

A.) y<=-2x+3
y<=x+3

B.) y>=-2x+3
y>=x+3

C.) y<=-3x+2
y<=-x+2

D.)y>-2x+3
y>x+3

Answers

Answer:

Its the yellow area

Step-by-step explanation:

How many solutions are there to the following equation?
5 ( x-3 ) - 3x = 8x - 15 - 6x

A) exactly two solutions
B) exactly one solution
C) no solution
D) infinitely many solutions

Answers

Answer:

D) infinitely many solutions

Step-by-step explanation:

5 ( x-3 ) - 3x = 8x - 15 - 6x

5x - 3x - 15 = 8x - 6x - 15

2x - 15 = 2x - 15

2x = 2x

Since, equations of both lines are same. Therefore, there are infinitely many solutions.

Answer:

D

Step-by-step explanation:

Given

5(x - 3) - 3x = 8x - 15 - 6x

5x - 15 - 3x = 2x - 15

2x - 15 = 2x - 15

Since both sides are the same then any real value of x will be a solution.

That is there are infinitely many solutions

Guys I rlly need help this due in 4 minutes, whats 1683 divided by 383 please help me

Answers

Answer:

1683 / 383 = 4.39 or approx 4.4

Answer:

4.39425587467 or 4 remainder 151.

Step-by-step explanation:

Long division.

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Hello! :) Please help me solve this + explain your answer :) I will indeed give you Brainlst help me plsss!!!!!!!! Are people racially profiled by the Police? why or why not, explain please Determine the present value of the following single amounts (FV of $1, PV of $1, FVA of $1, PVA of $1, FVAD of $1 and PVAD of $1) (Use appropriate factor(s) from the tables provided. Round your final answers to nearest whole dollar amount.): Which statement is true about the line whose equation is y=-2x-5?(1) its slope is -2(2)its parallel to the line whose equation is y=-2x+5(3) its y intercept is -5(4)its perpendicular to the line whose Equation is y=1/2x-5 5h=srt solve for t please help Which expression correctly represents six more than the quotient of three and a number, decreased by eight?6 + StartFraction 3 Over n EndFraction minus 86 + StartFraction n Over 3 EndFraction minus 86 + StartFraction 3 Over n EndFraction + 86 + StartFraction n Over 3 EndFraction + 8 a string attached to a 60.0 Hz vibr.ator creates a standing wave with 5 loops. What frequency would make 7 loops? (Unit = Hz) translate the phrase twice m increased by 2 is equal to 7 more then mpls show your work plssthxA. m/2 + 2 = 7 + mB. 2m + 2 = 7 + mC. 2m + 2 = m + 7D. 2m * 2 = m + 7 how do people extend our thinking about Nazi ideas? I dont get 9.) so if anyone cant skip it I need help with 10.) too Please help me!! :) Neil is completing a 10 km run in 4 monthstime. His personal best for 10 km is 55 minutesand he wants to complete this run in less than45 minutes.Identify the components of health-relatedfitness that Neil will have to develop to try andachieve this. Justify your choices. In this picture, what is the cook doing?A. El cocinero est cocinando la comida.B. El cocinero est decorando la comida.C. El cocinero est sazonando la comida.D. El cocinero est sirviendo la comida. Based on the 2017 season, the Houston Astros have a winning percentage of .623. Use the binomial model to find the probability that the Astros will win 4 of their next 6 games.P(x)=[n!x!(nx)!]pxqnx A. 12.4% B. 24.7% C. 32.1% D. 62.3% the area of a rectangle is 600 cm2 and its breadth is two-third of its length find the length and breadth of the rectangle PLEASE ASAP NEED HELP PLEASEEE !!!! 5. Si un paquete de 100 hojas iguales mide 1 cm de altura, cules el grosor de una hoja? find the equation of the circle with center at (3 -2) and radius of 3. pls help meeeeeeif you can I'll give you brainy