Statistics Quiz Unit 1 - 2

A _______ is a portion of the population that can be used to study that population.

• variable
• parameter
• statistic
• sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

The best way to describe the shape of the data would be

• skewed left
• skewed right
• symmetric

What is the interquartile range (IQR)?

• 4
• 64
• 60
• 8

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Based on the segmented bar graphs, does there appear to be an association between volunteerism and literacy level?

• Yes, all three bars have the same number of segments

• Yes, because all three bars have the same height

• Yes, because the corresponding segments of the three bars have different heights

• No, because the corresponding segments of the three bars have different heights

Tags

CCSS.8.SP.A.4

What percentage of SUV's are driven by women?

• 56.25%
• 75%
• 83.25%
• 86.5%

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?

• 1
• 2
• 3
• 4

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Which summary statistics would we use to describe this data?

• Mean for center, standard deviation for spread

• Median for center, standard deviation for spread

• Mean for center, IQR for spread

• Median for center, IQR for spread

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

Calculate the z score if the mean is 75, your score is 90 and σ is 4.5

• -3.33
• 3.33
• 1.77
• 2.1

Adam's Z-score on a test is +2.5.  What does this mean?

• He'd better start studying.
• He did better than EVERYONE.
• He scored 2.5 standard deviations above the average.
• He did terrible.

Tags

CCSS.HSS.ID.A.4

Scores on a certain standardized test have a mean of 500, and a standard deviation of 100. How common is a score between 600 and 700? Calculate the probability. 

• 2.5%
• 2.35%
• 16%
• 13.6%

Tags

CCSS.HSS.ID.A.4