Empirical Rule and Z-Score

Quiz
•
Mathematics
•
11th - 12th Grade
•
Hard
Barbara White
FREE Resource
16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What percentage of data is within 3 standard deviations
99.5%
68%
45%
99.7%
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What percentage of data is within 2 standard deviations
68
95
99.7
2.35
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Use the following information and the Empirical Rule to estimate the answer.
The ages of golfers are normally distributed, with a mean of 38 and a standard deviation of 4.
Find the proportion of golfers that are between 30 and 46 years old.
68%
94%
95%
99.7%
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
In a normal distribution, what percent of the values lie above the mean?
13.5%
34%
50%
68%
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
The sign of the z-score indicates whether the location is above(positive) or below(negative) the mean.
True
False
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