Normal Distribution practice

In a survey of men in the United States (ages 20-29), the mean height was 69.6 inches with a standard deviation of 3.0 inches. Find the minimum height in the top 22%.

• 69.37 in 
• 67.58 in 
• 73.12 in 

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 5.6 seconds?

• -1.33
• 1.33
• 0.88
• 1.02

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

Between what two standard deviations of a normal distribution contain 68% of the data?

• one below and one above
• two below and two above
• two below and zero
• zero and two above

Tags

CCSS.HSS.ID.A.4

What is the the total area under the standard normal distribution curve?

• 100
• 25
• .5
• 1

Tags

CCSS.7.SP.C.7A

μ = 70 , σ = 8 , X = 50 . Find z score

• 2.5
• -2.5
• 5.2
• -5.2

Tags

CCSS.HSS.ID.A.4

This distribution is ​ (a)   so we should use the ​ (b)   as a measure of center.

• right skewed
• median
• fairly symmetric
• left skewed
• mean
• standard deviation
• range
• mode

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

This distribution is ​ (a)   so we should use the ​ (b)   as a measure of center and the ​ (c)   as a measure of variability.

• fairly symmetric
• mean
• standard deviation
• left skewed
• range
• mode
• median
• IQR
• right skewed

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

How is the graph distributed?

• It is clearly Normal Distribution!

• Slightly skewed to the left.

• Slightly skewed to the right.

• It is clearly Uniform Distribution!

How is the graph distributed?

• Approximately Normal

• Skewed to the Left

• Skewed to the Right

• Uniform