z score table part 2

Find the value of k
P(Z> k) = 0.2327

• 0.73
• -0.73
• 0.27
• -0.27

Tags

CCSS.HSS.ID.A.4

Find the value of k
P( Z < k ) =0.2250

• 0.245
• 0.755
• -0.245
• -0.755

Tags

CCSS.HSS.ID.A.4

Find the value of k
P( Z ≤ k ) = 0.8250

• -0.065
• 0.065
• -0.935
• 0.935

Find the value of k
P(Z > k ) = 0.75

• -0.674
• 0.674
• -0.326
• 0.326

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

• 5%
• 95%
• 2.5%
• 50%

Tags

CCSS.HSF-LE.A.1B

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

Find the area of the shaded region. 

• 0.16
• 0.84
• 0.68
• 0.34

Tags

CCSS.HSS.ID.A.4

CCSS.HSS.MD.A.1

Attendance at a university’s basketball games follows a normal distribution with mean m = 8,000 and standard deviation s = 1,000.  Estimate the percentage of games that have between 7,000 and 9,000 people in attendance. 

• 68%
• 95%
• 99.7%

Tags

CCSS.HSS.ID.A.4

If heights of 3rd graders follow a normal distribution with a mean of 52 inches and a standard deviation of 2.5 inches, what is the z score of a 3rd grader who is 47 inches tall? 

• -5
• -2
• 2
• 5

Tags

CCSS.HSS.ID.A.4

In Standford, CA, cars were traveling at a mean speed of 23.84mph, with a standard deviation of 3.56mph. One car's z-score was +3.2. How fast was that car going?

• 72.728 mph
• 12.448 mph
• 35.232 mph
• 32.563 mph