Probability Under the Normal Distribution
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
Anthony Clark
FREE Resource
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A town's average snowfall is 48 inches per year with a standard deviation of 6 inches. Using a Normal model, what percent of snowfall amounts will be between 40 and 50?
0.5393
0.4607
0.3719
0.7234
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A bank's loan officer rates applicants for credit. The ratings can be described by a Normal model with a mean of 200 and a standard deviation of 50. What is the rating which cuts off the bottom 20%?
157.92
242.08
189.34
190.60
3.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
Find the area under the standard normal curve to the right of z = -2.67.
0.0869
0.9962
0.0008
0.1234
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
This data is normally distributed. What percent of the data is in the shaded region?
68%
95%
99.7%
50%
5.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
This data is normally distributed. What percent of the data is in the shaded region?
68%
32%
95%
50%
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the total area under the normal curve in a standard normal distribution?
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Where can we locate the mean in the normal curve?
to the left portion
to the right portion
at the center
on the z - axis
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