Statistics

Find the median of these numbers:
4, 2, 7, 4, 3

• 2

• 5

• 7

• 4

Jeff has four grades from tests and IXL. They are all weighted equally. If Jeff's grades are 100, 96, 96, and 100, what Jeff's current average grade?

• 96

• 97

• 98

• 100

Christian has six grades from tests and IXL. They are all weighted equally. If Christian's grades are 100, 96, 96, 88, 70, and 100, what is the current average grade? (Round to the nearest whole number)

• 90

• 91

• 92

• 93

Tags

CCSS.7.NS.A.3

The temperature in Springfield on this date in the last ten years were: 68, 68, 69, 70, 72, 70, 68, 75, 55, 67. What is the average temperature on this date over the last ten years? (Round to nearest whole number)

• 60

• 61

• 68

• 69

A set of drivers were asked about the number of accidents made in one year. Their answers were abbreviated in the following table:

The total number of surveyed drivers is:

• 20

• 70

• 4

• 10

A set of drivers were asked about the number of accidents made in one year. Their answers were abbreviated in the following table:

The number of drivers that made no accidents is:

• 0

• 3

• 5

• 7

The percentage of drivers who made 4 accidents is:

• 4%

• 20%

• 25%

• 60%

A set of drivers were asked about the number of accidents made in one year. Their answers were abbreviated in the following table:

The mean (average) number of accidents is performed by a driver is:

• 1.5

• 2

• 2.5

• 1

Choose all correct answers by referring to the following bar graph representing a statistical series:

• The total frequency is 45

• The total frequency is 25

• The value 6 is the most frequent value

• The % relative frequency for the value 7 is 20%

• The % relative frequency for the value 7 is 24%

What is the number of the students of this class?