ISEE Middle Level Math : How to find median

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

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Example Questions

Example Question #51 : How To Find Median

Find the median in this set of numbers:

\(\displaystyle 77, 78, 76, 72, 71\)

Possible Answers:

\(\displaystyle 77\)

\(\displaystyle 79\)

\(\displaystyle 71\)

\(\displaystyle \ 76\)

Correct answer:

\(\displaystyle \ 76\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 71,72,76,77,78\)

Then, identify the middle number: \(\displaystyle 76\)

Answer: \(\displaystyle 76\)

Example Question #442 : Data Analysis And Probability

Find the median for this set of numbers:

\(\displaystyle 44, 45, 42, 48, 49, 41, 41\)

Possible Answers:

\(\displaystyle 44\)

\(\displaystyle 49\)

\(\displaystyle 45\)

\(\displaystyle 46\)

None of these

Correct answer:

\(\displaystyle 44\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 41, 41, 42, 44, 45, 48, 49\)

Then, identify the middle number. Since there are seven numbers, the middle will be the fourth number from either end: \(\displaystyle 44\).

Answer: \(\displaystyle 44\)

Example Question #447 : Data Analysis And Probability

Find the median for this set of numbers:

\(\displaystyle 91, 99, 108, 111, 98, 99, 100\)

Possible Answers:

\(\displaystyle 111\)

\(\displaystyle 108\)

\(\displaystyle 99\)

\(\displaystyle 98\)

\(\displaystyle 100\)

Correct answer:

\(\displaystyle 99\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 91, 98, 99, 99, 100, 108, 111\)

Then identify the middle number. Since there are seven numbers, the middle will be the fourth number from either side: \(\displaystyle 99\).

Answer: \(\displaystyle 99\)

Example Question #52 : How To Find Median

Find the median in this set of numbers:

\(\displaystyle 61, 68, 60, 67, 66, 60, 63\)

Possible Answers:

\(\displaystyle 63\)

\(\displaystyle 60\)

\(\displaystyle 66\)

\(\displaystyle 8\)

\(\displaystyle 61\)

Correct answer:

\(\displaystyle 63\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 60, 60, 61, 63, 66, 67, 68\)

Then, identify the middle number:

\(\displaystyle 63\)

Answer: \(\displaystyle 63\)

Example Question #761 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the median for this set of numbers:

\(\displaystyle 33, 39, 35, 33, 36\)

Possible Answers:

\(\displaystyle 36\)

\(\displaystyle 33\)

\(\displaystyle 35\)

\(\displaystyle 39\)

None of these

Correct answer:

\(\displaystyle 35\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 33, 33, 35, 36, 39\)

Then identify the middle number: \(\displaystyle 35\)

Answer: \(\displaystyle 35\)

Example Question #762 : Isee Middle Level (Grades 7 8) Mathematics Achievement

\(\displaystyle \left \{ 11,10,9,10,15,12,10 \right \}\)

Find the median of the data set above.

Possible Answers:

\(\displaystyle 11\)

\(\displaystyle 10.5\)

\(\displaystyle 15\)

\(\displaystyle 12\)

\(\displaystyle 10\)

Correct answer:

\(\displaystyle 10\)

Explanation:

To find the median of a data set, you have to put the set in order from least to greatest \(\displaystyle (9,10,10,10,11,12,15)\). Then cross out one number from each side until you are left with the middle number, or the median. In this case, it's 10.

Example Question #453 : Data Analysis

Find the median in this set of number:

\(\displaystyle 43,34,39,48,35,43,46\)

Possible Answers:

\(\displaystyle 43\)

\(\displaystyle 44\)

\(\displaystyle 39\)

\(\displaystyle 48\)

\(\displaystyle 42\)

Correct answer:

\(\displaystyle 43\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 34, 35, 39, 43, 43, 46, 48\)

Then, identify the middle number:

\(\displaystyle 43\)

Answer: \(\displaystyle 43\)

Example Question #763 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the median for this set of numbers:

\(\displaystyle 87,88,81,82,86,81,80\)

Possible Answers:

\(\displaystyle 84\)

\(\displaystyle 81\)

\(\displaystyle 85\)

\(\displaystyle 82\)

\(\displaystyle 86\)

Correct answer:

\(\displaystyle 82\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 80, 81, 81,82, 86, 87,88\)

Then, identify the middle number. Since there are seven numbers total, the middle will be the fourth number from either end: \(\displaystyle 82\)

Answer: \(\displaystyle 82\)

Example Question #763 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the median in this set of numbers:

\(\displaystyle 589, 588, 584, 586, 586\)

Possible Answers:

\(\displaystyle 586\)

\(\displaystyle 584\)

\(\displaystyle 588\)

\(\displaystyle 589\)

Correct answer:

\(\displaystyle 586\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 584, 586, 586, 588, 589\)

Identify the middle number: \(\displaystyle 586\)

Answer: \(\displaystyle 586\)

Example Question #764 : Isee Middle Level (Grades 7 8) Mathematics Achievement

Find the median in this set of numbers:

\(\displaystyle 23,25,27,22,24\)

Possible Answers:

\(\displaystyle 25.5\) 

\(\displaystyle 22\)

\(\displaystyle 23\)

\(\displaystyle 24\)

\(\displaystyle 27\)

Correct answer:

\(\displaystyle 24\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 22,23,24,25,27\)

Then, identify the middle number: \(\displaystyle 24\)

Answer:\(\displaystyle 24\)

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