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12 questions
Which of the following is a disadvantage of the Empirical Rule?
There is no result for 3 standard deviations.
It is very conservative.
There is no result for 1 standard deviation.
The data has to be approximately normal.
When labeling the axis for a normal distribution curve, the notation σ is used to represent standard deviation. What is this Greek letter σ called?
Omega
Delta
Lowercase Sigma
Lowercase Omega
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%
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 older than 42.
13.5%
16%
50%
85%
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.
There are 500 golf members at the Mathy Country Club. How many are younger than 34?
16
80
100
150
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