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A continuous variable may not be normally distributed

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7. The number of defective pencils in a lot of 1000 is an example of a discrete random variable.


8. For a continuous distribution, P(X ≤ 100) is greater than P(X<100). 

9. A continuous variable may not be Normally distributed. 

10. The mean of a standard normal distribution is not equal to 1. 

11. If the sample size is 1000, we can safely use the normal approximation to binomial even for small p.

12. For a binomial probability experiment, if p is 0.1 and n is only 150, we cannot use the normal approximation to the binomial distribution without continuity correction.

Reference no: EM13259752

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