Normal Distribution and Probability Concepts

Find the probability the snowfall will be between 3 and 6 inches.

• .2

• .4

• .6

• 1

Tags

CCSS.HSS.MD.A.3

CCSS.HSS.MD.A.4

Find the probability that x falls in the shaded area. (give your answer to 2 decimal places)

(a)  

Tags

CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

For a continuous probability distribution, 0 ≤ x ≤ 10. What is P(x = 7)?

(a)  

The shelf life of a particular dairy product is normally distributed with a mean of 12 days and a standard deviation of 3 days.

About what percent of the products last between 12 and 15 days?

• 68%
• 34%
• 16%
• 2.5%

Tags

CCSS.HSS.ID.A.4

If the average annual precipitation in Phoenix is 29 with a standard deviation of 3, what is the "normal" range of precipitation (Middle 68%)?

• 26-32

• 3-29

• 26-29

• 39-32

Tags

CCSS.HSS.ID.A.4

Mean=65 mph, SD=2 mph. What speed is the 95th percentile?

• 95 mph

• 68 mph

• 73 mph

• 69 mph

Tags

CCSS.HSS.ID.A.4

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5.  What proportion of weeks would you expect to have less than 5 accidents?

• 0.6915
• 0.1762
• 0.8238
• -0.93

Tags

CCSS.HSS.ID.A.4

The mean number of accidents a week at a company is 6.4 with a standard deviation of 1.5.  What proportion of weeks would you expect to have more than 7 accidents?

• 0.3446
• 0.2856
• 0.4
• 0.6554

Tags

CCSS.HSS.ID.A.4

The number of cars in the parking lot.

• discrete data

• continuous data

Time taken to complete homework.

• discrete data

• continuous data