Statistical Questions and Measures of Center

Find the mean number of soccer goals scored.

Round the decimal up to the nearest whole number (ex: if the answer was 4.5, round up to 5).

(a)  

Find the median of that data on this frequency table.

• 20

• 45

• 30

• 18

What is the mean of the data, rounded to the nearest tenth?

• 6.0

• 8.0

• 9.3

• 6.8

What is the mean of this data, and what is a general observation you can make?

• 80, most students scored higher than 80

• 85.83, most students score 80 or higher

• 80, most students scored lower than 80

• 85.83, most students scored lower than 80

• Use the mean, the teacher's age, an outlier, won't affect the mean as much as the other measures.

• Use the median so the teacher's age, an outlier doesn't affect the middle.

• Use mode, the number on the list the most is best.

The data from how many students was recorded on this histogram?

• 43

• 4

• 60

• 15

What 3 values could be entered for Wednesday, Thursday, Friday to give you a MEAN of 7?

• 9,6,9

• 2,3,5

• Any 3 numbers that add up to 20.

• All sevens

What is the mode for this data set?

• 3

• 7

• 7.5

• 9

What is the mean of this data set?

• 43

• 46

• 567

• 63

If there is an outlier in your data (a point very far from the other data, or a very long whisker), what is the best measure of center to use and why?

• Median is best because the outlier skews the data.

• Mean is best because the outlier doesn't skew the data.

• Mode is always the best measure of center because it shows the most.