HELPPP ASAPPPThe data to represent average test scores for a class of 16 students includes an outlier value of 91. If the outlier is included, then the mean is 80. Which statement is always true about the new data when the outlier is removed?

The median would decrease.
The median would increase.
The mean would decrease.
The mean would increase.

Answers

Answer 1

Answer:

Answer:

Option C (The mean would decrease).

Step-by-step explanation:

In this question, there are 16 observations and their mean is 80. There is an outlier which has the value 91. This means that the outlier is on the greater side of the mean. The formula for mean is:

Mean = Sum of observations/Number of Observations.

Sum of observations can be calculated by substituting the values in the above formula.

80 = Sum/16.

Sum = 80*16 = 1280.

Subtracting 91 from the total sum will give the sum of rest of the 15 non-outlier values. Therefore 1280 - 91 = 1189.

Calculating the mean of the 15 values:

Mean = 1189/15 = 79.267 (correct to 3 decimal places).

It can be seen that removing the outlier decreases the mean. Therefore C is the correct answer. The information regarding the median cannot be determined since actual values are not present, which are required to calculate the median. Therefore, C is the correct choice!!!

Answer 2

Answer:

Answer: The mean would decrease

Step-by-step explanation:

Related Questions

Hannah is having her bedroom painted. Interior Designs of Royal PalmBeach charges $60 for inspection and $40 per hour for painting.Wellington's Splash of Color charges $70 per hour for painting, but noinspection fee. Which of the following are true? Select all that apply. *If it takes 7 hours to paint Hannah's room, Interior Design will be cheaper.If it takes 3 hours to paint the room, both companies will charge the same amount.If it takes 10 hours to paint Hannah's room, Splash of Color will cost at least $200more than Interior Design.Splash of Color will always be cheaper.
Which expression is equivalent to (3x - 5 y) + (x + 2 y)?A) 4x - 7y B) 4x - 3y C) 4x + 3y D) 4x + 7y
I will give 100 points and brainly
Three hundred sixty five times twenty four
on a number line, between which two consecutive whole numbers would the square root of 70 be located? prove work/show work

I need help pleas and thnk u

Answers

smallest x intercept is (-8,0)
Biggest x-intercept is (7,0)

Answer:

Yup other answer is correct! :)

Step-by-step explanation:

(Use photo ) find the length of the hypotenuse in each right triangle. Please show work and round to the nearest tenth,if necessary.

Answers

9.) QP=5-1
QP=4units
QR=3+1
QR=4units

squareroot 4^(2)+4^(2)

and you should get 5.66 (cor. to 3 s.f.)

10.) LM=5units
MN=7units

squareroot 7^(2)+5^(2)
you should get 8.06 (cor. to 3 s.f.)

Maya is driving 120 miles to her grandmother's house. She drives 35% of the distance before stopping for lunch. How far does she drive before lunch?

Answers

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

35% of 120 miles

= 42 miles

The distance traveled before stopping for lunch is 42 miles.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Requiredpercentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Totaldistance = 120 miles

She drives 35% of the distance before stopping for lunch.

This means,

35% of 120 miles

= 35/100 x 120

= 42 miles

The distance traveled before stopping for lunch is 42 miles.

Thus,

The distance traveled before stopping for lunch is 42 miles.

Learn more about percentages here:

brainly.com/question/11403063

#SPJ2

She drives 35% of the time before lunch.

= 35% of 120 miles.

= 35/100 * 120 . Simply cancel off each zero at the bottom and top.

= 35/10 * 12 = 3.5 * 12 = 42. Using your calculator.

So she drove 42 miles before lunch.

mason is growing tomatoes in his garden this year. every 1.5 ft of stalk yields about 3.4 lbs of tomatoes. he has four plants with a combined stalk lenghth of 10.5 feet. how many pounds of tomatoes can he expect to harvest?

Answers

You would have to multiply 3.4 times 10.5

Answer to the question

Answers

Answer:

What is the question you can't see

What is 1.03 to the 23rd power

Answers

Answer:

1.97

Step-by-step explanation:

Other Questions

Tara is graphing the equation y=1/2x. she has placed point on the origin and uses the slope to find 2 more points. which points does tara plot ont her grph?

What is the answer for 3x-5x=3+4

Navor has $800 and is spending $30 per week. Rashid has $150 and is saving $20 per week. In how many weeks will Nabor and Rashid have the same amount of money?

A recipe for chili uses 213213 cups of beans. Keith is making 112112 times the recipe. Which equation helps Keith find how many cups of beans he needs?