Statistics Quiz Practice

In Mr. Vaughans math class, more people sit on the right hand side of the room than the left. Students who sit on the right had the following test scores:

80, 70, 50, 76, 100

The students on the left received the following scores:

50, 60, 90, 70, 50

Which side had the higher mean?

• Right

• Left

What data value is the upper quartile (Q3)?

• 64
• 62
• 66
• 58

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What percentage of the data is between 40 and 150?

• 25 %
• 50%
• 75%
• 100%

Tags

CCSS.6.SP.B.4

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

CCSS.6.SP.A.1

What is the median of the data?

• 200
• 100
• 90
• 140

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

find the range 68 53 24 59 08

• 57

• 60

• 68

• 47

68 53 24 59 08

What happens to the range if 32 is added to the data set?

• The range increases

• The range does not change

• The range decreases

• Can't determine

Which box and whisker plot has the highest median?

• Top plot
• Bottom plot

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

Which box and whisker plot has the smallest lower quartile (Q1)?

• Top plot
• Bottom plot

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

What happens to the mean if 15 is added to the data set?

4,5,6,7,3,4,10,1

• Mean increases

• Mean decreases

• Mean doesn't change

• Can't determine

Your first 3 test grades for the semester were 84, 96, and 88. What do you need on the 4th test for your average grade to be a 90?

• 92

• 88

• 96

• 94