Statistics Algebra
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
Anthony Clark
FREE Resource
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12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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
2.
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
3.
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
4.
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 between 5 and 7 accidents?
0.1762
0.8238
0.6554
0.4792
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find the area under the standard normal curve to the right of z = -2.67.
0.0869
0.9962
0.0008
0.1234
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Find P (-1.26 < z < 3.25).
0.0047
0.9204
0.8956
0.4981
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Annual U.S. per capita orange use: μ =11.4 lb, σ = 3lb. What annual per capita use of oranges represents the 10th percentile?
7.56 lbs
13.42 lbs
8.29 lbs
9.38 lbs
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