Mean Median Statistics

What is the mean of these numbers?
4,5,5,2,3,3,2,8

• 40

• 24

• 4

• 256

To find the average of a set of numbers, add up all the items and divide by...

• 2

• The minimum

• The maximum

• The number of items

Find the mode for the following goals scored by soccer team.
3,   3,   0,   2,   2,   2,   5,   5,   8,   4

• 8

• 4

• 3

• 2

What is the median?

• The number in the middle.

• The greatest number - the least number

• The average

• The number that appears most often.

Kylie recorded her test scores for her past nine assignments.

73.5, 70.0 , 67.5, 83.0, 91.0, 87.3, 67.5, 90.0, 70.0

What are the mean and median of this data set?

Mean​​ (a)   Median​ ​ (b)  

• 73.5

• 77.75

• 70.0

• 71.5

Use the table to find the following:

Median: ​ (a)  

Mean: ​ (b)  

• 80.5

• 78.5

• 77

• 84

Tags

6.12.C

These data show the ages of students in a community play: 12, 9, 11, 9, 15, 11, 9, 11, 12. Which data point could be removed from the set without changing the mean or the median of the data?

• 9

• 11

• 12

• 15

Answer explanation

Removing the data point '9' will not change the mean or median as it appears multiple times in the set, thus not affecting the central tendencies.

A. The student saw that this will not change the median.

B. Correct. The student demonstrated an ability to describe the impact that deleting a data point has on the mean and

the median of a data set.

C. The student saw that this will not change the median.

D. The student saw that this will not change the median.

Tags

PA.D.1.1

Which statement is true if a tenth data point of 45 is added to the data set?

• The mean and median will both increase.

• he mean will increase and the median will decrease.

• The mean will increase and the median will remain the same.

• The mean and median will both decrease.

These data show the ages of students in a community play: 12, 9, 11, 9, 15, 11, 9, 11, 12. Which data point could be removed from the set without changing the mean or the median of the data?

• 9

• 11

• 12

• 15

Answer explanation

Removing the data point '9' will not change the mean or median as it appears multiple times in the set, thus not affecting the central tendencies.

A. The student saw that this will not change the median.

B. Correct. The student demonstrated an ability to describe the impact that deleting a data point has on the mean and

the median of a data set.

C. The student saw that this will not change the median.

D. The student saw that this will not change the median.

Tags

PA.D.1.1

What is the median number of goals scored?

• 3

• 3.5

• 4

• 5