Statistics Review Normal Distribution

Quiz
•
Mathematics
•
12th Grade
•
Hard
Anthony Clark
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The distribution of heights of adult American men is approximately Normal with mean 69 inches and standard deviation 2.5 inches. What percent of men are between 64 and 66.5 inches tall?
50%
2.5%
13.5%
34%
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
At a local high school, GPA's are normally distributed with a mean of 2.9 and standard deviation of 0.6. What percentage of students at the high school have a GPA between 2.3 and 3.5?
68%
99.7%
95%
84%
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the the total area under the standard normal distribution curve?
100
25
.5
1
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
According to the empirical rule, what percentage of data falls within 1 standard deviation?
25%
68%
95%
99.7%
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the Normal Range (68%) of the annual precipitation for Phoenix, if the average is 29 with a standard deviation of 3?
26-32
3-29
26-29
39-32
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
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