ISEE Middle Level Math : ISEE Middle Level (grades 7-8) Mathematics Achievement

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

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Example Questions

Example Question #44 : How To Find Median

Find the median in this set of numbers:

\(\displaystyle 66, 61, 60, 69, 64\)

Possible Answers:

\(\displaystyle 61\)

\(\displaystyle 64\)

\(\displaystyle 60\)

\(\displaystyle 64.5\)

\(\displaystyle 69\)

Correct answer:

\(\displaystyle 64\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 60,61,64,66,69\)

Then, identify the middle number:

\(\displaystyle 64\)

Answer: The median is \(\displaystyle 64\).

Example Question #43 : How To Find Median

Find the median in this set of numbers:

\(\displaystyle 19, 11, 12, 16, 17\)

Possible Answers:

\(\displaystyle 12\)

\(\displaystyle 16\)

\(\displaystyle 17\)

\(\displaystyle 11\)

\(\displaystyle 19\)

Correct answer:

\(\displaystyle 16\)

Explanation:

First order the numbers from least to greatest:

\(\displaystyle 11, 12, 16, 17, 19\)

Identify the middle number: \(\displaystyle 16\).

Answer: The median is \(\displaystyle 16.\)

Example Question #45 : How To Find Median

Find the median in this set:\(\displaystyle 78, 74, 79, 71, 72\)

Possible Answers:

\(\displaystyle 79\)

\(\displaystyle 78\)

\(\displaystyle 74\)

\(\displaystyle 71\)

Correct answer:

\(\displaystyle 74\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 71, 72, 74, 78, 79\)

Then, identify the middle number: \(\displaystyle 74\)

Answer: The median is \(\displaystyle 74\).

Example Question #442 : Data Analysis And Probability

Find the median for this set of numbers:

\(\displaystyle 22, 27, 28, 29, 26\)

Possible Answers:

\(\displaystyle 29\)

\(\displaystyle 28\)

\(\displaystyle 26\)

\(\displaystyle 25\)

\(\displaystyle 27\)

Correct answer:

\(\displaystyle 27\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 22, 26, 27, 28, 29\)

Then, identify the middle number. Since there are five numbers in the set, the median will be the third number from either side: \(\displaystyle 27\).

Answer: \(\displaystyle 27\).

Example Question #443 : Data Analysis And Probability

Find the median in this set:

\(\displaystyle 39, 33, 37, 31, 30\)

Possible Answers:

\(\displaystyle 31\)

\(\displaystyle 9\)

\(\displaystyle 37\)

\(\displaystyle 33\)

\(\displaystyle 39\)

Correct answer:

\(\displaystyle 33\)

Explanation:

First order the number from least to greatest:

\(\displaystyle 30, 31, 33, 37, 39\)

Identify the middle number: \(\displaystyle 33\)

Answer: The median is \(\displaystyle 33\).

Example Question #443 : Data Analysis

Find the median for this set of numbers:

\(\displaystyle 88, 85, 82, 86, 84\)

Possible Answers:

\(\displaystyle 84\)

\(\displaystyle 82\)

\(\displaystyle 88\)

\(\displaystyle 85\)

\(\displaystyle 86\)

Correct answer:

\(\displaystyle 85\)

Explanation:

First, order the numbers from least to greatest:

\(\displaystyle 82,84,85,86,88\)

Then, identify the middle number. Since there are five numbers in the set, the middle number will be the third from either end: \(\displaystyle 85\)

Answer: \(\displaystyle 85\)

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: \(\displaystyle 63\)

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