Basic Stats Quiz

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

• 2
• 5
• 7
• 4

Tags

CCSS.6.SP.A.3

CCSS.6.SP.A.2

CCSS.6.SP.B.5

Four data sets are shown below.
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest standard deviation?

• Set 1
• Set 2
• Set 3
• Set 4

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

If the standard deviation of a data set is 4, what is the variance?

• 2
• 16
• 4

Tags

CCSS.6.SP.A.3

Which of the following is a measure of variability?

• mean
• median
• mode
• standard deviation

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.ID.A.2

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

This data is normally distributed.  What percent of the data is in the shaded region?

• 68%
• 95%
• 99.7%
• 50%

Tags

CCSS.HSS.ID.A.4

Before you can begin calculating the variance, you must first:

• find the mean

• find the median

• find the mode

• find the range

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

The 40 yards sprint times for a soccer team are found to be normally distributed with a mean of 5.2 seconds and a standard deviation of 0.3 seconds.  What is the z-score for a player who runs a time of 5.6 seconds?

• -1.33
• 1.33
• 0.88
• 1.02

Tags

CCSS.HSS.ID.A.4

The 40 yards sprint times for a soccer team are found to be normally distributed with a mean of 5.2 seconds and a standard deviation of 0.3 seconds.  What is the z-score for a player who runs a time of 4.6 seconds?

• 0.83
• 1.07
• -2
• -1.07

Tags

CCSS.HSS.ID.A.4

The mean GPA of students in a course at UCDavis is 3.2 with a standard deviation of 0.3. What percent of students in the course have a GPA between  2.9 and 3.8? 

• 81.5%
• 47.5%
• 68%
• 95%

Tags

CCSS.HSS.ID.A.4