Measures of Central Tendency (Mean of Ungrouped Data)

It is the science of collecting, classifying, organizing, summarizing, presenting, analyzing and interpreting data in order to draw conclusions or make decisions

• Statistics

• Census

• Population

• Survey

Tags

CCSS.6.SP.A.3

It is a summary measure that attempts to describe a whole set of data with a single value that represents the middle or center of its distribution

• Statistics

• Measure of Central Tendency

• Measure of Variability

• Probability

Tags

CCSS.6.SP.A.3

It is the sum of all the values of each observation in a data set divided by the number of observations

• sample

• mean

• median

• mode

Tags

CCSS.6.SP.B.5C

The mean or arithmetic mean is also known as the _______

• average

• middle score

• first score

• last score

Tags

CCSS.6.SP.B.5C

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

Tags

CCSS.6.SP.B.5C

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

• 5

• 10

• 15

• 20

Tags

CCSS.6.SP.B.5C

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

• 5

• 10

• 15

• 20

Tags

CCSS.6.SP.B.5C

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

• 5

• 10

• 15

• 20

Tags

CCSS.6.SP.B.5C

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

Tags

CCSS.6.SP.B.5C

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