Answer:
slope = 1
Step-by-step explanation:
-3 | -3
5 | 5
_____
8 | 8
8/8= 1
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.
Answer:
B
Step-by-step explanation:
I know because I know that how
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.
Learn more about Mean here:
https://brainly.com/question/521501
#SPJ7
The changes in the depth of snow, in inches, at a ski resort for four days are shown below.
-1/8, 3/4, 3/4, -1/2
What is the average change in the depth of the snow during the 4-day period?
A. 2 1/8
B.3 1/2
C. 7/32
D. 17/32
Step-by-step explanation:
Total change = (-1/8) + (3/4) + (3/4) + (-1/2) = 7/8.
Average change = Total change / 4 days
= (7/8) / 4
= 7/32. (C)
At David's Swimwear, 50% of the 36 swimsuit styles are bikinis. How many bikini styles are there?
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Answer:
18
Step-by-step explanation:
50% × 36 = 0.50 × 36 = 18
There are 18 bikini styles at David's Swimwear.
Answer:
18 bikini styles.
Step-by-step explanation:
Divide 36 by 2.
Mr. Ingram's lunch at a restaurant costs $13.00, without tax. He leaves the
waiter a tip of 17% of the cost of lunch, without tax. What is the total cost
of the lunch, including the tip, without tax?
$2.21
$10.79
$13.17
$15.21
which equation represents this graph?
Answer:
It would be the 1st answer, y= 3/2x + 2.
Step-by-step explanation:
The intersection on the Y axis determins the "+2". To find the slope, it is always x/y. It rises 3, and runs 2. Hope this helps
Rajan had 30 dollars to spend on 3 gifts. He spent 9 1 4 dollars on gift A and 5 4 5 dollars on gift B. How much money did he have left for gift C?
Answer:
$15 1/10
Step-by-step explanation:
Given that :
Total amount to spend = $30
Amount spent on Gift A = $9 1/4
Amount spent on Gift B = $5 4/5
Amount left to spend on gift C ;
$30 - (9 1/4 + 5 4/5)
$30 - (37/4 + 29/5)
$30 - (185 + 116)/20
$30 - 298/20
30/1 - 298/20
$(600 - 298) / 20
$302/20
$15 2/20
= $15 1/10
Solve this question. 50 pts!!
Answer:
QR = 19
SR = 24
PT = 25
SQ = 14
QRS = 47 °
PQS = 39°
RPS = 42°
PSQ = 67°
Answer:
answer
Step-by-step explanation:
QR = 19
SR = 24
PT = 25
SQ = 14
QRS = 47 °
PQS = 39°
RPS = 42°
PSQ = 67°
5/8 - 1/16= what’s the answer to this please help
Answer:
9/16
Step-by-step explanation:
(5/8 * 2/2) - (1/16 - 1/1)
10/16 - 1/16
10-1//16 = 9/16
5/8 - 1/16 = 9/16
(5*16) - (1*8) / 8 * 16
80-8/ 128
72/128
72/8
128/8= 9/16
5/8 - 1/16 = 9/16
What is $27.00 in cents
Answer:
2700
cents
Step-by-step explanation:
DETERMINE THE MISSING SIDE
Answer:
21 in
Step-by-step explanation:
by the Pythagorean theorem we have
[tex]841=400+x^2\\\\x^2=441\\\\x=21[/tex]
notice that the 841 and the 400 don't go squared because they already squared!
Aisha wants to paint the four walls of her living room.
Each wall is 2.4 m high and 3.7 m long.
One wall has a door of 2 m by 0.7 m.
Tins of paint cost £12 per 1.5 L tin.
Each litre of paint can cover 8 m2 of wall.
There is an offer of: Buy 2 tins get the 3rd at half price.
How much will Aisha pay to paint her living room?
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Answer:
£30
Step-by-step explanation:
The total area of the four walls is ...
A = 4 × LW
A = 4 × (2.4 m)(3.7 m) = 35.52 m²
Subtracting the area of the door, we find the painted area to be ...
35.52 m² -(2 m)(0.7 m) = 34.12 m²
Painting this area will require ...
(34.12 m²)/(8 m²/L × 1.5 L/tin) = 2.8433... tins
Aisha will need to buy 3 tins of paint, for which she pays 2.5 times the price of 1 tin:
2.5 × £12 = £30 . . . . Aisha's cost to paint her living room
£25 or £20.10
Step-by-step explanation:
calculate the area to be painted:
2.1x4.5= 9.45m^2 for each wall
x4= 37.8m^2
area of door= 1.8x0.9= 1.62m^2
subtract the area of the door from the wall area
37.8-1.62= 36.18m^2 to be painted
divide the area by the area that 1L of paint can cover
16.18/12= 3.015 L needed
if 1.5L= £10 then, 3L= £20. she needs 2 cans + an extra 0.015 L- so another can (3 cans total) add price up.
£30- but buy 2 get 3rd 1/2 price, so take £5 off. price is £25
or
calculate price for 0.015L
1.5=£10
divide both sides by 100
0.015= £ 0.10
if 1.5L= £10 then, 3L= £20. she needs 2 cans + an extra 0.015 L
£20+£0.10= £20.10
I DONT KNOW IF THIS IS RIGHT but hope it helps :)
Sorry for it being so long
Answer:
<1 = 97
<2 = 83
<7=87
<8 = 83
<11 = 112
<12 = 68
<13 = 112
<14 = 68
Step-by-step explanation:
Those are the only ones Ik sry
Please help, this is called Writing Equations
Answer:
I think its the 2nd one im not sure tho
Step-by-step explanation:
Answer:
first one is 14.
second one is 131-11=6B
Step-by-step explanation:
1) 252/18=14
2) you want to know how much 6 books sre and it says you got 11 dollars change so u take 11 from 131 to get the price of 6 books
hope that helps :)
how does algebra work im not very good at it
How to solve and the answer
Answer:
x = 10; y = 10
Step-by-step explanation:
[tex] \sin(theta) = \frac{opposite}{hypotenuse} [/tex]
[tex] \cos( {theta} ) = \frac{adjacent}{hypotenuse} [/tex]
[tex] \tan( {theta} ) = \frac{opposite}{adjacent} [/tex]
theta = 45°
opposite = x
hypotenuse = 10√2
adjacent = y
1) find x using sin formula[tex] \sin(theta) = \frac{opposite}{hypotenuse} [/tex]
[tex] \sin(45) = \frac{x}{10 \sqrt{2} } [/tex]
[tex] \sin(45) \times 10 \sqrt{2} = x[/tex]
[tex]10 = x[/tex]
[tex]x = 10[/tex]
2) find y using cos formula[tex] \cos( {theta} ) = \frac{adjacent}{hypotenuse} [/tex]
[tex] \cos(45) = \frac{y}{10 \sqrt{2} } [/tex]
[tex] \cos(45) \times 10 \sqrt{2} = y[/tex]
[tex]10 = y[/tex]
[tex]y = 10[/tex]
wut anime do u guys watch comment down below and you'll get brainliest as well 2x2 just in case it would deleted i will also put math equations 2x3x4x5
Juanita has 70 toy cars. 40% of the cars are blue.
How many cars are blue?
Answer:
28
Step-by-step explanation:
70×40% = 28
hdhxjsjcjsx
Answer:
28
Tell me if I am wrong. :) Hope it helps!
Step-by-step explanation:
what is the meaning of the slope in this situation?
Answer:
add a photo please do we can help you better
Answer:
The picture is non-existent
plz help me with this
Answer:
its green so you got it right
and if thats not the case you are correct
Step-by-step explanation:
A line AB joins the points A (3,4) and B (5,8). Write down the coordinates of the midpoint of the line AB
Please help
Thank you
Given:
A line AB joins the points A (3,4) and B (5,8).
To find:
The midpoint of the line AB.
Solution:
Midpoint formula:
[tex]Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]
A line AB joins the points A (3,4) and B (5,8). So, the midpoint of line AB is
[tex]Midpoint=\left(\dfrac{3+5}{2},\dfrac{4+8}{2}\right)[/tex]
[tex]Midpoint=\left(\dfrac{8}{2},\dfrac{12}{2}\right)[/tex]
[tex]Midpoint=\left(4,6\right)[/tex]
Therefore, the midpoint of the line AB is (4,6).
i have to make an expression that has a value of 10 out of the numbers 5,2,1,1 and the format it has to go in is like ( - )+( x )=10 help me please
Answer:
(1-1)+(5×2)
hope this helps you
-2x - 2y =-10 and 9x + 7y = 49
Answer:
I think it is 49
Step-by-step explanation:
Hope this helped have an amazing day/month/year!
A store is having a 20%-off sale on its video games. What is the amount of the discount on a game that regularly costs $25?
Answer:$20
Step-by-step explanation:
$25x.20=5
$25-5=20
Please help me on this, all help will be appreciated
solve: logx 64 = 3. Which is an equivalent equation?
By applying the definition of logarithm, you have
\log_x(64) = 3 \iff x^3 = 64logx(64)=3⟺x3=64
So, if you consider the cubic root of both sides, you have
x = \sqrt[3]{64} = 4x=364=4
Answer:
x
=
4
,
−
2
+
2
i
√
3
,
−
2
−
2
i
√
3
Step-by-step explanation:
NEED HELP FAST PLEASEEE!!
Answer:
y=2x+0
Slope:
2
y-intercept:
( 0, 0 )
Step-by-step explanation:
Slope intercept form: y=mx+b
Use the slope formula and the slope-intercept form to find the slope m and y-intercept b .
what is the equation in slope intercept form of a line that has a slope of -1/2 and a y intercept of 6?
Answer:
y=-1/2x + 6
Step-by-step explanation:
I can't see the picture because it is blurry but i got y=-1/2x + 6
Plz need help thank u sm
Answer:
x = 5
Step-by-step explanation:
Since the problem shows us that all the angles of the triangle are equal, we can confirm this is an equilateral triangle. Equilateral triangles have the same angles and the same side lengths. Knowing this, we can set up an equation to solve for x.
6x - 5 = 5x (Given)
-5 = -x (Subtract 6x on both sides)
5 = x (Divide -1 on both sides)
Therefore, x = 5.
Answer:
x = 5
Step-by-step explanation:
Since all the three angles of the triangle GJH are marked by identical signs, thus they are congruent.
Therefore, triangle GJH is an equilateral triangle.
Measures of all sides of an equilateral triangle are equal.
So,
6x - 5 = 5x
6x - 5x = 5
x = 5
2(2x + 4) - (5x - 3)
Answer:
-x + 11
Step-by-step explanation:
Distribute 2 into 2x + 4 to get 4x + 8, convert the negative sign for the second pair of parentheses to get - 5x + 3. Combine the two like terms together to get the final answer which is -x + 11.
Please helppppppppppp
Answer:
21.92
Step-by-step explanation:
division
87.68 ÷ 4
Answer:
The answer is 21.92
Step-by-step explanation:
87.68 divided by 4
There is 4 people and the total is $87.68
