Question

1. Choose the correct answer.

1. Which continuous random variable is equivalent to a binomial discrete random variable?
   1. Gaussian random variable
   2. Uniform random variable
   3. Exponential random variable
   4. None of the above
2. Suppose that the GPA average of students is 3.0. Assuming a Gaussian distribution, what is the probability that a student selected at random has a GPA less than 3.0?
   1. 0.5
   2. 0
   3. 1
   4. Cannot be determined
3. For a continuous random variable X,
   1. P[X=x]>0.
   2. P[X=x]=0.
   3. P[X=x]=F_X (x).
   4. P[X=x]<F_X (x).

Answer 1

A)Gaussian random variable

B) option A is correct : 0.5 (since it is symmetric)

C) option B is correct P(X=x]=0.