STATISTICS REVIEW

Which of the following is an example of a statistical question?

• What color shirt are you wearing?
• How many dogs do you have?
• What are the favorite ice cream flavors of CMS 6th graders?
• Is it a nice day outside?

Tags

CCSS.6.SP.A.1

Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7

• 7

• 7.44

• 8

• 7 and 8

Tags

CCSS.6.SP.B.5C

How many 7th graders had an IQ score in the 81-90 range?

• 13

• 6.5

• 3

• 42

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

The mean of this data set is 17.8. What would happen to the mean if 40 was added to the data set?

• The mean would not change

• The mean would go up

• The mean would go down

Which class has the higher median?

• 1st period

• 2nd period

• They have the same median

Tags

CCSS.HSS.ID.A.3

What is the relative frequency (to the nearest percent) of boys among those who cannot bike to school? 

• 4%
• 14%
• 13%
• 29%

Tags

CCSS.8.SP.A.4

A survey explored the relationship between gender and band class. Which is a reasonable conclusion?

• There are more band members than non-band members
• There are more boys in the class than girls
• There are more boys in band than not in band
• More than half of the bands members in the class are girls

Tags

CCSS.8.SP.A.4

33, 25, 42, 25, 31, 37, 46, 29, 38
What is the interquartile range of the data?

• 8
• 9
• 13
• 21

Tags

CCSS.6.SP.B.5C

• 1
• 5
• 7
• 8

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

• 3
• 6
• 9
• 12

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B