Mean of Ungrouped Data

The mean or arithmetic mean is also known as the _______

• average

• middle score

• sum

• last score

The mean of ungrouped data can be computed by dividing the __________

• First score by the total number of values

• Middle score by the total number of values

• Sum of all the measurements or the values by the total number of measurements

• Sum of all the measurements or the values by 10

What is the average mean of the following scores: 5, 6, 8, 15,16

• 5

• 10

• 15

• 20

What is the average test scores of the students given the following data: 5, 10, 15, 20, 25

• 5

• 10

• 15

• 20

What is the average of the following data: 2, 4, 6, 10, 10, 18, 20, 30?

• 5

• 10

• 15

• 20

Karen's score on her first four History tests were 85, 88, 89, and 95. To get an A in the class, she needs to have an average of 90. What score must she make on the fifth test to get an A?

• 91

• 92

• 93

• 94

When a number x is added to the data set 4, 8, 20, 25, 32, the new mean is 15. What is the value of x?

• 0

• 1

• 2

• 3