ACT Math : How to find arithmetic mean

Study concepts, example questions & explanations for ACT Math

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Example Questions

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Example Question #61 : Statistics

Find the mean of the following set of numbers.

Possible Answers:

Correct answer:

Explanation:

To find mean, simply total the numbers and divide by 7.

Example Question #61 : Statistics

Find the mean of the following set of numbers:

Possible Answers:

Correct answer:

Explanation:

To find the mean, simply sum all of the numbers and divide by how many there are.

Thus,

Example Question #71 : Data Analysis

Find the mean of the following set of numbers:

Possible Answers:

Correct answer:

Explanation:

To find the mean, simply sum up the numbers and divide by the amount there are. Thus,

Example Question #61 : How To Find Arithmetic Mean

Restaurant

From the menu above, what is the average price of a sandwich?  Round to the nearest cent.

Possible Answers:

$5.07

$4.99

$5.09

$5.11

$5.03

Correct answer:

$5.07

Explanation:

Average  = Sum of the Options / # of Options

= (4.75 + 5.25 + 4.75 + 4.50 + 5.00 +5.25 + 6.00) / 7 = 35.50 / 7 = 5.07

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