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- 1. Multiple Choice
According to the 68-95-99.7 rule, what percentage of data falls within one standard deviation of the mean in a normal distribution?
50%
68%
75%
90%
- 2. Multiple Choice
What is the average value of a dataset called?
median
mean
mode
range
- 3. Multiple Choice
In a normal distribution, what percentage of data falls within two standard deviations of the mean according to the 68-95-99.7 rule?
50%
95%
99.7%
68%
- 4. Multiple Choice
What is the shape of a normal distribution?
circular
bell-shaped
triangular
rectangular
- 5. Multiple Choice
What is the symbol used to represent the mean in statistics?
μ
x
σ
n
- 6. Multiple Choice
In a normal distribution, what percentage of data falls within three standard deviations of the mean according to the 68-95-99.7 rule?
68%
95%
50%
99.7%
- 7. Multiple Choice
What is the symbol used to represent the standard deviation in statistics?
μ
x
σ
n
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