Question

Which of the following statements is correct? If cov(A,B)=0, then A and B are independent. The...

  1. Which of the following statements is correct?
  1. If cov(A,B)=0, then A and B are independent.
  2. The normal distribution has mean 0.
  3. The exponential distribution is a discrete distribution.
  4. Non of the above is correct.
Math   Statistics-And-Probability   
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Homework Answers

Answer #1

A

If cov(A,B)=0, then A and B are independent.

cov(A,B)=0 is not a necessary condition for events to be independent

Hence the statement is FALSE

B

he normal distribution has mean 0.

Normal distribution can have any mean varying from minus infinity to plus infinity, only standard normal distribution has mean 0

Hence the statement is FALSE

C

The exponential distribution is a discrete distribution.

Exponential distribution is a continuous distribution

Hence the statement is FALSE

hence the correct answer is None of the above is correct.

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