Probability Distributions
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Anthony Clark
Used 2+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The 75th percentile is also know as the
median
third quartile
1st quartile`
interquartile range
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Given a mean of 75 and a standard deviation of 7, what percentage of scores are between 75 and 82?
68%
81.5%
16%
34%
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The average weight of a newborn is 7.5 pounds, with a standard deviation of 1.25 pounds. Birth weight follows the standard normal curve. What percent of newborns weigh 5 pounds or less at birth?
2.35%
0.15%
2.5%
50%
4.
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%
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If this is the graph of data normally distributed with a mean of 30 and a standard deviation of 5, what label (number) is written at the blue circle?
20
15
40
30
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If this is the graph of data normally distributed with a mean of 30 and a standard deviation of 5, what label (number) is written at the blue circle?
40
35
45
50
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What shape is a normal distribution curve?
Half curve
Round curve
Bell curve
Square curve
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