1. Which of following is ex of discrete random variable?
A) The distance you can drive in car with full tank of gas.
B) The number of cows on cattle ranch.
C) The weight of package at the post office.
D) The amount of rain which falls over 24-hour period
2. Which of following is an ex of continuous random variable?
A) The number of cars in parking lot.
B) The number of repairs at computer shop over the course of week.
C) The total points scored in basketball game.
D) The weight of bag of potatoes.
3. Consider following probability distribution function.
|
x
|
0
|
1
|
2
|
3
|
4
|
5
|
6
|
|
P(x)
|
0.07
|
0.19
|
0.23
|
0.17
|
0.16
|
0.14
|
0.04
|
A) Find out P(X > 3)?
B) Find out P(2 < X < 5)?
C) Find out P(X 2)?
D) Find out P(X < 6)?