ISEE Lower Level Quantitative Reasoning › How to identify the parts of a list
Greg is a shoe salesman. The past 5 days, he has sold the following numbers of shoes:
What is the median?
The median is the middle number in a set when ordered from smallest to largest.
When the set, is ordered from smallest to largest, it is
.
Here, the middle number is 7. Therefore, the correct answer is 7.
If Angela runs 5 miles on Tuesday, 6 miles on Wednesday, and 7 miles on Thursday, how many miles will she run on Saturday if she continues with this pattern?
Angela's pattern is to run one more mile each subsequent day than the number of miles she ran the previous day. Therefore, since she ran 7 miles on Thursday, she will run 8 miles on Friday and 9 miles on Saturday. Therefore, 9 is the correct answer.
Recently, Antonio has been keeping a record of how many hours that he sleeps per night. The following sequence of numbers is the amount of hours Antonio has slept during each of the last seven nights.
What is the mean number of hours that Antonio slept per night?
To calculate the mean number of hours that Antonio slept per night, first find the total number of hours he slept during the past seven nights. Then divide the sum total by the number of nights in a week.
Thus, the solution is:
Throughout the last games of the basketball season, Joleen scored the following number of points:
What is the average amount of points that Joleen scored per game?
To find the average number of points that Joleen scored, first find the sum of Joleen's points. Then divide the sum by the number of games to determine the average per game. Thus, the solution is:
Which of the following could not be a term in the sequence 5, 10, 15, 20...?
35
2500
3751
10005
All answers in the sequence must end in a 5 or a 0.
Find the mode of the following number set:
The mode is the number that appears the most amount of times within the set. Thus, the correct answer is --which is the only number that appears twice.
What is the mode of the set below?
The mode of a set is the number that appears most often. Given that the number 5 appears 3 times (more than any other number) it is therefore the mode and the correct answer.
Valena has two older brothers that are ages &
. Additionaly, she has one younger sister that is
years old. What is the mean age of Valena's siblings?
To find the mean of Valena's siblings, calculate the sum of their age's. Then divide the sum by the total number of siblings.
Thus, the solution is:
Kayla has guitar practice several times per week. On separate days, she practiced for hours,
hours,
hours and
hours.
Find the average number of hours that Kayla practiced guitar per day.
To calculate the average amount of time that Kayla practiced guitar per day, find the total number of hours that Kayla practiced. Then divide the total number of hours she practiced by the total number of days that she practiced guitar.
Thus, the solution is:
The following sequence of numbers is the amount of hours that Carlos spent playing video games during each of the past weeks. Find the mean number of hours that Carlos spent playing video games per week.
To find the mean number of hours that Carlos played per week, calculate the sum total of all of the hours that he played video games during the past six weeks. Then divide the sum by the total number of weeks.
Thus, the solution is: