Normal Distributions Probability
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Anthony Clark
FREE Resource
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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%
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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%
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
For a randomly selected subject in a standard normal distribution (mean is 0 and standard deviation is 1), find the probability of a score between 1.37 and 2.42.
0.078
0.785
0.223
0.023
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Red blood cell counts of women are normally distributed with a mean of 4.577 and a standard deviation of 0.382. What percentage of women have red blood cell counts in the normal range from 4.2 to 5.4?
82.3%
77.8%
72.6%
68%
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Abigail is analyzing the test scores of her class, which are normally distributed. What percent of the scores fall within the shaded region?
68%
95%
99.7%
50%
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What percent of people within 1 standard deviation of the mean?
99.7
34
68
95
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This data is normally distributed. What percent of the data is in the shaded region?
68%
95%
99.7%
50%
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