7th Grade Math Review

Front

What is the mean?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

Front

How do you calculate the cost of each donut if 12 donuts cost $9.96?

Back

To find the cost of each donut, divide the total cost by the number of donuts: $9.96 ÷ 12 = $0.83.

Front

What is the median in a data set?

Back

The median is the middle value in a data set when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the formula for the volume of a cylinder?

Back

Front

How do you solve a proportion?

Back

To solve a proportion, cross-multiply the two fractions and set the products equal to each other. For example, if a/b = c/d, then a*d = b*c.

Front

What is the difference between mean and median?

Back

The mean is the average of all numbers, while the median is the middle value when numbers are sorted. The mean can be affected by extreme values, while the median is more resistant to them.

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the minimum, first quartile, median, third quartile, and maximum.

Front

How do you find the volume of a cylinder with a radius of 3 and a height of 6?

Back

Front

What is a proportion?

Back

Front

What is the formula for finding the mean of a data set?

Back