ISEE Middle Level Quantitative : Data Analysis and Probability
Study concepts, example questions & explanations for ISEE Middle Level Quantitative
All ISEE Middle Level Quantitative Resources
Example Questions
Example Question #271 : Data Analysis
Find the mean of this set of numbers:
First add the numbers in the set:
Then, divide by 7:
Example Question #42 : How To Find Mean
Peter went fishing and caught 5 fish the first hour, 3 fish the second hour, and 4 the last hour. On average, how many fish did Peter catch per hour?
First, add up the three numbers:
Then, divide by 3, because there are three numbers in the data set:
Answer: On average, Peter caught 4 fish per hour.
Example Question #43 : How To Find Mean
Consider the data set:
What is the difference between the mean of this set and the median of this set?
To get the mean, add the numbers and divide by 8:
To get the median, find the mean of the fourth- and fifth-highest elements (the ones in the middle):
The difference is
Example Question #3 : How To Find Mean
What is the mean of the values 
The mean of a set of values can be calculated by adding the values together and dividing by the number of values:
Example Question #561 : Isee Middle Level (Grades 7 8) Mathematics Achievement
Adrienne is trying on dresses for prom. The dresses she likes each cost 
First, add up all of the dress prices:
Then, divide by the number of dresses:
Answer: The average dress price is
Example Question #46 : How To Find Mean
Find the mean of the data set provided:
In order to answer this question correctly, we need to recall the definition of mean:
Mean: The mean of a data set is the average of the numbers in a data set.
In order to calculate the mean we must first add up all of the numbers in the data set:
Next, we need to divide by the number of addends, or the number of numbers in the data set:
The mean for this data set is
Example Question #47 : How To Find Mean
Find the mean, rounded to the nearest hundredth, of the data set provided:
In order to answer this question correctly, we need to recall the definition of mean:
Mean: The mean of a data set is the average of the numbers in a data set.
In order to calculate the mean we must first add up all of the numbers in the data set:
Next, we need to divide by the number of addends, or the number of numbers in the data set:
The mean, rounded to the nearest hundredth, for this data set is
Example Question #48 : How To Find Mean
Find the mean, rounded to the nearest hundredth, of the data set provided:
In order to answer this question correctly, we need to recall the definition of mean:
Mean: The mean of a data set is the average of the numbers in a data set.
In order to calculate the mean we must first add up all of the numbers in the data set:
Next, we need to divide by the number of addends, or the number of numbers in the data set:
The mean, rounded to the nearest hundredth, for this data set is
Example Question #49 : How To Find Mean
Find the mean of the data set provided:
In order to answer this question correctly, we need to recall the definition of mean:
Mean: The mean of a data set is the average of the numbers in a data set.
In order to calculate the mean we must first add up all of the numbers in the data set:
Next, we need to divide by the number of addends, or the number of numbers in the data set:
The mean for this data set is
Example Question #1 : How To Find Median
Brandon is training for a marathon. Each day after school he runs for two hours. Over the course of two weeks, he runs the following distances:
What is the median distance that Brandon runs?
There is no median.
In order to find the median, we must first put the data in numerical order from least to greatest:
Next, we must find the number that is in the middle, but since there are fourteen numbers, there is no number that falls exactly in the center. When this happens, we add the two middle numbers together and divide by two. In this case, our middle numbers are 
Brandon's median distance is 
Certified Tutor
All ISEE Middle Level Quantitative Resources
