ISEE Middle Level Math : Data Analysis

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

varsity tutors app store varsity tutors android store

Example Questions

Example Question #74 : Data Analysis And Probability

Find the average in this set of numbers:

\(\displaystyle 43, 48, 41, 45, 43\)

Possible Answers:

\(\displaystyle 45\)

\(\displaystyle 41\)

\(\displaystyle 44\)

\(\displaystyle 43\)

Correct answer:

\(\displaystyle 44\)

Explanation:

First, add all the numbers in the set:

\(\displaystyle 43+48+41+45+43=220\)

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

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

Answer: The average is \(\displaystyle 44\)

Example Question #301 : Data Analysis And Probability

Find the mean of this set of numbers:

\(\displaystyle 27, 21, 23, 28, 26\)

Possible Answers:

\(\displaystyle 125\)

\(\displaystyle 25\)

\(\displaystyle 2\)

\(\displaystyle 5\)

\(\displaystyle 24\)

Correct answer:

\(\displaystyle 25\)

Explanation:

First, add up the numbers:

\(\displaystyle 27+ 21+ 23+28+ 26=125\)

Then, divide by the number of terms in the set:

\(\displaystyle 125\div 5=25\)

Answer: The mean is \(\displaystyle 25\).

Example Question #78 : Data Analysis And Probability

Find the mean for this set of numbers:

\(\displaystyle 2425, 2454, 2540\)

Possible Answers:

\(\displaystyle 2473\)

\(\displaystyle 2450\)

\(\displaystyle 2454\)

\(\displaystyle 3\)

\(\displaystyle 7419\)

Correct answer:

\(\displaystyle 2473\)

Explanation:

Add the numbers in the set:

\(\displaystyle 2425+ 2454+ 2540=7419\)

Then divide by the total numbers in the set. In this case, there were three original numbers:

\(\displaystyle 7419\div 3=2473\)

Answer: \(\displaystyle 2473\)

Example Question #61 : Data Analysis

Find the mean for this set of numbers:

\(\displaystyle 3314, 3319, 3312\)

Possible Answers:

\(\displaystyle 3319\)

\(\displaystyle 3314\)

\(\displaystyle 3312\)

\(\displaystyle 3310\)

\(\displaystyle 3315\)

Correct answer:

\(\displaystyle 3315\)

Explanation:

Add the numbers in the set:

\(\displaystyle 3314+ 3319+ 3312=9945\)

Then divide by the total numbers in the set. In this case, there were three original numbers:

\(\displaystyle 9945\div 3=3315\)

Answer: \(\displaystyle 3315\)

Example Question #80 : Data Analysis And Probability

Find the mean for this set of numbers:

\(\displaystyle 16, 14, 17, 13\)

Possible Answers:

\(\displaystyle 16\)

\(\displaystyle 15\)

\(\displaystyle 12\)

\(\displaystyle 20\)

\(\displaystyle 4\)

Correct answer:

\(\displaystyle 15\)

Explanation:

First, find the sum of all the numbers in the set:

\(\displaystyle 16+14+17+13=60\)

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

\(\displaystyle 60\div 4=15\)

Answer: The mean is \(\displaystyle 15\).

Example Question #491 : Ssat Middle Level Quantitative (Math)

Find the mean for this set of numbers:

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

Possible Answers:

\(\displaystyle 5\)

\(\displaystyle 320\)

\(\displaystyle 64\)

\(\displaystyle 65\)

\(\displaystyle 63\)

Correct answer:

\(\displaystyle 64\)

Explanation:

First add all the numbers in the set:

\(\displaystyle 66+61+60+69+64=320\)

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

\(\displaystyle 320\div 5=64\)

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

Example Question #301 : Data Analysis

Find the mean of this set of numbers:

\(\displaystyle 745, 396, 1379\)

Possible Answers:

\(\displaystyle 2520\)

\(\displaystyle 745\)

\(\displaystyle 1379\)

\(\displaystyle 840\)

\(\displaystyle 1175\)

Correct answer:

\(\displaystyle 840\)

Explanation:

First, add the three numbers:

\(\displaystyle 745+396+ 1379=2520\)

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

\(\displaystyle 2520 \div 3=840\)

The answer is \(\displaystyle 840\)

 

 

Example Question #61 : Mean

Find the mean in this set of numbers:

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

Possible Answers:

\(\displaystyle 13\)

\(\displaystyle 20\)

\(\displaystyle 25\)

\(\displaystyle 75\)

\(\displaystyle 15\)

Correct answer:

\(\displaystyle 15\)

Explanation:

First add all the numbers in the set:

\(\displaystyle 19+ 11+ 12+16+17=75\)

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

\(\displaystyle 75\div 5=15\)

Answer: The mean is \(\displaystyle 15\).

Example Question #302 : Data Analysis

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

Possible Answers:

\(\displaystyle 11\)

\(\displaystyle 9\)

\(\displaystyle 7\)

\(\displaystyle 8\)

Correct answer:

\(\displaystyle 8\)

Explanation:

First, order the numbers from least to greatest:

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

Then, subtract the smallest number from the greatest: \(\displaystyle 79-71=8\)

Answer: The range is \(\displaystyle 8\).

Example Question #303 : Data Analysis

Find the mean in this set:\(\displaystyle 78, 75, 79, 71, 72\)

Possible Answers:

\(\displaystyle 77\)

\(\displaystyle 74\)

\(\displaystyle 78\)

\(\displaystyle 75\)

Correct answer:

\(\displaystyle 75\)

Explanation:

First, add all the numbers in the set:

\(\displaystyle 78+ 75+ 79+ 71+ 72=375\)

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

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

Answer: The mean is \(\displaystyle 75\).

Learning Tools by Varsity Tutors