Statistics Review

Find the MEAN (remember to add the numbers up and then divide by how many numbers there are)

22, 24, 25, 26, 30, 35

• 25

• 27

• 22

• 25.5

Find the MEDIAN of this set of numbers (*don't forget you need to FIRST put the numbers in order before you can find the median)

28, 45, 25, 32, 20, 39, 50

• 30

• 35,5

• 25

• 32

Find the MODE..(*remember the MODE is the MOST)

• 21

• 62

• 3

• 35

Find the range of the following sets of data (* Remember Range = Maximum – Minimum)

44, 50, 55, 56, 62, 68, 70

• 25

• 26

• 36

• 34

Which of the following are statistical questions? Select all that apply.

• How many pages are in that book?

• What is the temperature outside right now?

• What is the average weight of a squirrel?

• What are the favorite cars for junior high students?

• How many seconds are in an hour?

Which of the following is a statistical question?

• Are all students in a class wearing glasses?

• Is the sun hot?

• What color is the sky?

• How long did it take each student in the class to get to school?

• How many pages are in a book?

What is a requirement of a statistical question?

(a)  

• a variety of answers

• one set answer

A scatter plot shows the relationship between hours studied and test scores. If there is a trend line going upwards, what does this suggest?

• As study hours decrease, test scores increase.

• As study hours increase, test scores decrease.

• As study hours increase, test scores increase.

• There is no relationship between study hours and test scores.

What is a requirement of a statistical question?

• a variety of answers

• one set answer

Questions that have a variety of answers

• Basic

• Interview

• Statistical

• Mystical