maths wk 2

Q.1 (9) The right answer is “A discrete random variable” So explain the terms. Type, formula, and type.

The number of finance majors within the School of Business is an example of _______.

a constant

the normal distribution

a continuous random variable

the Poisson distribution

a discrete random variable

Q.2 (8) Solve and discuss the solution of below questions and include all the solution steps.

(Correct answers is 0.38)

It is known that 20% of all students in some large universities are overweight, 20% exercise regularly and 2% are overweight and exercise regularly. What is the probability that a randomly selected student is either overweight or exercises regularly or both?

0.10

0.20

0.42

0.38

0.40