SSAT Middle Level Math : Mean

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

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Example Questions

Example Question #71 : Mean

Find the average for this set of numbers:

\(\displaystyle 88, 85, 81, 86, 80\)

Possible Answers:

\(\displaystyle 85\)

\(\displaystyle 80\)

\(\displaystyle 90\)

\(\displaystyle 86\)

\(\displaystyle 84\)

Correct answer:

\(\displaystyle 84\)

Explanation:

First add all the numbers in this set:

\(\displaystyle 88+ 85+ 81+ 86+ 80=420\)

Then, divide by the amount of numbers in the set. In this case, we need to divide by \(\displaystyle 5\).

\(\displaystyle 420\div 5=84\)

Answer: \(\displaystyle 84\)

Example Question #71 : Mean

Find the mean in this set of numbers:

\(\displaystyle 77, 78, 76, 73, 71\)

Possible Answers:

\(\displaystyle 74\)

\(\displaystyle 78\)

\(\displaystyle 73\)

\(\displaystyle 75\)

Correct answer:

\(\displaystyle 75\)

Explanation:

First add the numbers in the set:

\(\displaystyle 77+ 78+ 76+ 73+ 71=375\)

Then, divide by the amount of numbers in the set:

\(\displaystyle 375\div 5=75\)

Answer:\(\displaystyle 75\)

 

Example Question #622 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the mean for this set of numbers:

\(\displaystyle 43, 45, 42, 46, 44\)

Possible Answers:

\(\displaystyle 45\)

None of these

\(\displaystyle 42\)

\(\displaystyle 43\)

\(\displaystyle 44\)

Correct answer:

\(\displaystyle 44\)

Explanation:

First add all the numbers in the set:

\(\displaystyle 43+45+42+46+44=220\)

Then divide by the amount of numbers in the set. In this case, there are five:

\(\displaystyle 220\div 5=44\)

Answer: \(\displaystyle 44\)

Example Question #311 : Data Analysis

Find the mean for this set of numbers:

\(\displaystyle 91, 99, 108, 105, 98, 99, 100\)

Possible Answers:

\(\displaystyle 114\)

\(\displaystyle 100\)

\(\displaystyle 99\)

\(\displaystyle 95\)

\(\displaystyle 110\)

Correct answer:

\(\displaystyle 100\)

Explanation:

First add all the numbers in this set:

\(\displaystyle 91+ 99+ 108+ 105+ 98+ 99+ 100=700\)

Then divide by the amount of numbers in the set: \(\displaystyle 700\div 7=100\)

Answer: \(\displaystyle 100\)

Example Question #501 : Ssat Middle Level Quantitative (Math)

Find the mean in this set of numbers:

\(\displaystyle 64, 67, 66, 60, 63\)

Possible Answers:

\(\displaystyle 69\)

\(\displaystyle 66\)

\(\displaystyle 60\)

\(\displaystyle 8\)

\(\displaystyle 64\)

Correct answer:

\(\displaystyle 64\)

Explanation:

First, add all of the terms together:

\(\displaystyle 64, 67, 66, 60, 63=320\)

Then, divide the sum by the number of terms in the set: \(\displaystyle 320\div 5=64\)

Answer: \(\displaystyle 64\)

Example Question #72 : Data Analysis

Find the mean of this set of number:

\(\displaystyle 43,34,39,40,34\)

Possible Answers:

\(\displaystyle 35\)

\(\displaystyle 34\)

\(\displaystyle 40\)

\(\displaystyle 43\)

\(\displaystyle 38\)

Correct answer:

\(\displaystyle 38\)

Explanation:

First add all the numbers in the set:

\(\displaystyle 43+34+39+40+34=190\)

Then, divide by the amount of numbers in the set:

\(\displaystyle 190\div 5=38\)

Answer: \(\displaystyle 38\)

Example Question #72 : Mean

Find the mean in this set of numbers:

\(\displaystyle 581, 588, 584, 586, 586\)

Possible Answers:

\(\displaystyle 586\)

\(\displaystyle 584\)

\(\displaystyle 7\)

\(\displaystyle 585\)

Correct answer:

\(\displaystyle 585\)

Explanation:

First add all the numbers in this set:

\(\displaystyle 581+588+584+586+586=2925\)

Then divide by the amount of numbers in this set: \(\displaystyle 2925\div 5=585\)

Answer: \(\displaystyle 585\)

Example Question #91 : Data Analysis And Probability

Find the mean in this set of numbers:

\(\displaystyle 23,25,27,21,24\)

Possible Answers:

\(\displaystyle 27\)

\(\displaystyle 6\)

\(\displaystyle 26\) 

\(\displaystyle 25\)

\(\displaystyle 24\)

Correct answer:

\(\displaystyle 24\)

Explanation:

First add all the numbers in the set:

\(\displaystyle 23,25,27,21,24=120\)

Then, divide by the amount of numbers in the set:  \(\displaystyle 120\div 5=24\)

Answer:\(\displaystyle 24\)

Example Question #509 : Ssat Middle Level Quantitative (Math)

Find the mean for this set of numbers:

\(\displaystyle 29, 23, 26, 28, 24\)

Possible Answers:

\(\displaystyle 29\)

\(\displaystyle 24\)

\(\displaystyle 26\)

\(\displaystyle 22\)

\(\displaystyle 23\)

Correct answer:

\(\displaystyle 26\)

Explanation:

First, add all the numbers in this set:

\(\displaystyle 29+23+26+28+ 24=130\)

Then, divide by the amount of numbers in the set:

\(\displaystyle 130\div 5=26\)

Answer: \(\displaystyle 26\)

Example Question #631 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the mean in this set of numbers:

\(\displaystyle 35, 34, 32, 36, 38\)

Possible Answers:

\(\displaystyle 36\)

\(\displaystyle 35\)

\(\displaystyle 35\)

\(\displaystyle 175\)

\(\displaystyle 5\)

Correct answer:

\(\displaystyle 35\)

Explanation:

First, add all the numbers in this set:

\(\displaystyle 35+34+ 32+ 36+ 38=175\)

Then, divide by the amount of numbers in the set: \(\displaystyle 175\div 5=35\)

Answer: \(\displaystyle 35\)

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