Mathematics College

Mean of eight observations is 25. If one observation 11 is excluded , find the mean of the remaining.​

Answers

Answer 1

Answer:

Mean = 27

Step-by-step explanation:

Given mean = 25

No of observations (N) = 8

We know,

Mean = Sum / N

25 = Sum / 8

Sum = 25 x 8

Sum = 200

Since an observation 11 is removed,

New sum = 200 - 11 = 189

New no. of observation (N) = 8 - 1 = 7

Now,

Mean of remaining observations = New Sum / New N

= 189/7

= 27

Answer 2

Answer:

mean=25

n=8

sum of observation=?

we have

mean=sum/n

sum=25×8=200

if one observation is excluded

sum will be =200-11=189

[n]no of observation = 8-1=7

new mean =new sum/new n=189/7=27

the mean of the remaining is 27

Related Questions

The expression (x^3) (x12) is equivalent to x^n. What is the value of n?

3 and n are exponents

Answers

Answer:

Step-by-step explanation:

(x^3) (12x)

(x^4)(12)

12x^4

We can really find the exponent without knowing what x is equal to but I hope this helps

Someone please explain how you got the answer please and thank you

Answers

Answer:

3 texts by madelyn, there were 2 texts from aubrey

Step-by-step explanation:

the ratio of maddie to aubrey was 18:12 which is 3:2

so 3 by maddie = 2 by aubrey

i used maddie because its shorter

Answer:

6 + 6 is 12 and 12 + 6 is 18 so i think its for every 6 text sent and then 6 again (6 in both boxes)

Step-by-step explanation:

adore your sasha pfp

Help nnananannanannanananannannanansnnsnsnnsnsnsnsnnsns

Answers

Answer:

2

Step-by-step explanation:

The two x's end up being -4 and 6, so added together that's 2

WILL GIVE BRAINLIEST

Answers

Answer:

C

Step-by-step explanation:

It's not A and B because an exponent to the negative number leads to the fraction.

e.g. 10^-a = 1/(10^a)

It's not D because 5,030,000 rounds to 5,000,000 and not 6,000,000.

If each cube in the rectangular prism measures 1 cubic inch, what is the volume of the prism?


A.
40 cubic in
B.
168 cubic in
C.
84 cubic in
D.
144 cubic in

Answers

hmm, how many cubes are there?

length times width times height

we have 6 cubes long, 6 wide and 6 tall

6*6*6=216 cubes

each is 1 cubic feet

216 times 1=216

216 cubic feet

A is answer

find the area of the right triangle.​

Answers

Answer:

16 units²

Step-by-step explanation:

1/2x4x8=16

What is the diameter of a 2m circle?

Answers

Answer:

If 2m is the radius, the diameter is 4 meters.

2*2=4

Answer
2*2=4

Explanation
The diameter of a circle is the distance from one edge to the other, passing through the center. It is twice the radius.

So the diameter would be 2 cause 2 x 2=4

Two forces of 90 newtons and 58 newtons act simultaneously on an object. The angle between the two forces is 57°. Find the magnitude of the resultant, to the nearest 10th of a newton.

Answers

Answer:

131.0 N

Step-by-step explanation:

Let the 90 N force is acting a horizontal force on the object

Horizontal force = 90 + 58sin33

Vertical force = 58cos33

∴The resultant force = √(90 + 58sin33)² + (58cos33)²

= 131.0 N

Parts of the Arctic have 21 hours of daylight each summer day. What
fraction of the day is dark? Show your work. Write your answer in lowest
terms.

ok so can someone please answer because this is for a test​

Answers

Answer:Parts of the Arctic have 21 hours of daylight each summer day. What fraction of the day is dark? Show your work. Write your answer in lowest

terms.

Step-by-step explanation: 24 hours

Day Length. Day length varies with the time of year and the latitude at which you are situated. Because of the earth's tilt, areas above the Arctic Circle receive 24 hours of sunlight each summer, but 24 hours of darkness each winter.


Need help with this

Answers

oh wow that’s a lot that’s crazy

Use the slope formula to find the slope of the line through the points (2,1) and (8,7)

Answers

Answer:

6/6

Step-by-step explanation:

Answer: slope = (6,6)

Step-by-step explanation:

I WILL GIVE BRAINERLEST ABD LIKE AND 5 STARS IF YOU ANSWER


How many people n would be seated in
each section if there were 27 total
people in the gym?

Answers

Answer:

IT SAYS IT 27 PEOPLE WOULD BE SEATED

Step-by-step explanation:

Find the exact value of the trigonometric function.
cos( 2pi/35 )

Answers

[tex]cos(\frac{2\\pi }{35} )\\[/tex]≈0.98392958...

PLEASE ANSWER ASAP FOR BRAINLEST SUPER EASY QUESTION!!!!111111111111
What is 1906.624 rounded to the nearest hundredth?

Answers

Answer:

1906.62

Step-by-step explanation:

hope this helps

WILL GIVE BRAINLIST BLS HELP Find z. Just write the number. Answer should be a whole number.

Answers

Answer:

I think the anwser is 8

Step-by-step explanation:

Answer:

It will be 8

Step-by-step explanation:

because the triangle will be in a ratio of 1:[tex]\sqrt{3}[/tex]:2, here 1 corresponds to 4, so the sides will be 4, 4\sqrt{3} and 8!

Need help please some one

Answers

Answer:

gforse

Step-by-step explanation: 660

Do you still need help?

Can someone help please

Answers

Answer:

Angle 2 = 34 degrees

Angle 4 = 34 degrees

Step-by-step explanation:

Angle 7 = Angle 1

180 - 146 = 34 degrees

so Angle 2 and 4 are 34 degrees, since they are congruent.

Hope this helped! Have a nice day! Plz mark as brainliest!!! :D

-XxDeathshotxX

Simplify: 17b + 82c + 90 + e - 18 - 10c - b

Answers

Hopes this helps:

Answer: 16b+ 72c+72+e

(17b- b) + (82c- 10c) + (90- 18) + e

does 12, 24, 36 form a right triangle​

Answers

Explanation is in the file

tinyurl.com/wpazsebu

Find the perimeter of the following shapes
3.6 cm
3 cm
7.2 cm

Answers

Step-by-step explanation:

Perimeter = 3.6 + 3 + 702

= 708.6 cm

What’s the slope of the line I forgot how to do it when it comes to negative ones :((!!

Answers

(4,-2) because your going up 4 and when you go up it’s positive and than left two it’s negative because when you go left it’s always negative (:

The point D(2, -5) is rotated 90° counterclockwise around the origin. What are the coordinates of the resulting point, D′?

Answers

Answer:

D' = (5, 2)

Step-by-step explanation:

Try to join D and the origin using a line. Counterclockwise means in an opposite direction of rotation of the clock hands. So draw another line towards the right which is perpendicular to the previous line to fine the answer. Remember the length of the lines should be equal.

A recipe calls for 2 cups flour and 1 1/2 cup milk to make seven servings. Ming has plenty of​ flour, but only 5 cups of milk. How many servings can he​ make? Ming can make (answer) servings with 5 cups of milk.

Answers

Answer:

21 or 23 servings.

Step-by-step explanation:

Principle $1950 rate 4 1/2% time 9

Answers

Answer:

Interest = [tex] \boxed{\$ 789.75} [/tex]

Explanation:

Interest [I] = principle × rate × time [prt]

______________________________

x% = x/100

a b/c = a + (b/c) = (ac + b) / c

______________________

I = prt

I = ($1,950)(4 ½%)(9)

I = ($1,950)(0.045)(9)

I = ($87.75)(9)

I = ($789.75)

I = $789.75

How many solutions will the system of linear equations have: y = x + 6 and 3x - 3y = -18

Answers

Answer:

If i'm not mistaken, infinite because its linear which is a straight line that goes on forever

Step-by-step explanation:

What is the area of an equilateral triangle with sides of length 20?

Answers

Answer:

173.2

Step-by-step explanation:

area of equilateral triangle = √3 / 4 l^2

so area =173.2

Convince yourself that there are 3 similar triangles in the diagram. Choose the
similarity statement that represents the relationship among the 3 triangles.
Please only answer if your sure

Answers

The correct answer is the second option.

Answer:

second option.

Step-by-step explanation:

The times for running a 5K for a local charity event are Normally distributed. Which standardized time represents the
87th percentile?
Find the z-table here.
-1.34
-1.13
01.13
1.34

Answers

Answer:

1.13

Step-by-step explanation:

Edge 2021 hope this helps


If you add Natalie's age and Fred's age, the result is 44. If you add Fred's age to 4 times
Natalie's age, the result is 83. Write and solve a system of equations to find how old Fred and Natalie
are

Answers

Answer: 31, 13

Step-by-step explanation:


let: f(x)=x+1 and g(x)=x^2-2

find: f(x)•g(x)

Answers

Answer: x3+x2−2x−2

Step-by-step explanation: Use the given functions to set up and simplify f ( x ) ⋅ ( g ( x ) ) .

Brainliest or a thank you please! have a great day/night

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