ISEE Middle Level Math : How to find mean

Study concepts, example questions & explanations for ISEE Middle Level Math

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Example Questions

Example Question #21 : Mean

Patricia is shopping for a coat. She is considering three coats. Each costs $85.98, $93.29 and $88.99, respectively. What is the average price of a coat she is considering?

 

Possible Answers:

Correct answer:

Explanation:

First, add up all of the prices:

Then, divide .

Answer: The average price of a coat is $89.42.

Example Question #22 : Mean

Find the mean in this set of numbers:

11, 14, 13, 12, 18, 14, 12, 14, 17, 15

Possible Answers:

Correct answer:

Explanation:

First, add up all of the numbers:

Then, divide by ten because there are ten numbers in the set:

Answer: The mean is 14.

Example Question #23 : Mean

Find the mean of this set of numbers:

787, 778, 878, 877, 780

Possible Answers:

Correct answer:

Explanation:

First add up all of the numbers in the set:

Then, divide by five because there are five numbers in the set:

Answer: The mean is .

Example Question #24 : Mean

Norma made 11 Valentine's Day cards on Saturday, 13 on Sunday, and 9 on Monday? On average how many cards did Norma make each day?

Possible Answers:

Correct answer:

Explanation:

First, add the numbers:

Then, divide by 3:

Answer: On average, Norma made 11 cards each day.

Example Question #25 : Mean

Find the mean of this set of numbers:

Possible Answers:

Correct answer:

Explanation:

First, add the numbers:

Then, divide by 7:

 

Example Question #31 : Mean

Find the mean of this set of numbers:

Possible Answers:

Correct answer:

Explanation:

First add the numbers in the set: 

Then, divide by 7:

 

Example Question #1722 : Grade 6

Peter went fishing and caught 5 fish the first hour, 3 fish the second hour, and 4 the last hour. On average, how many fish did Peter catch per hour?

Possible Answers:

Correct answer:

Explanation:

First, add up the three numbers:

Then, divide by 3, because there are three numbers in the data set:

Answer: On average, Peter caught 4 fish per hour.

Example Question #26 : Mean

Find the mean of this set of numbers:

Possible Answers:

Correct answer:

Explanation:

First, add up all of the numbers in the set:

Then, divide by 5, because there are five numbers in the data set:

 

Example Question #27 : Mean

Find the average of this set of numbers:

Possible Answers:

Correct answer:

Explanation:

First, add up all of the numbers:

Then, divide by 5, because there are five numbers in the data set:

 

Example Question #28 : Mean

Find the mean in this set of numbers:

Possible Answers:

63

Correct answer:

63

Explanation:

First, add up all of the numbers in this set:

Then, divide by , because there are seven numbers in the set:

 

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