# The probability distribution for the random variable x follows: xf(x)200.20250.15300.25350.40What is the probability that x is less than or equal to 25?What is the probability that x is greater than 30?Please do not solve using Microsoft Excel.  My professor does not teach using excel.  I would like to see the equation and steps involved for my own reference to study for my exams.

Question
1. The probability distribution for the random variable x follows:

 x f(x) 20 0.20 25 0.15 30 0.25 35 0.40
1. What is the probability that x is less than or equal to 25?
2. What is the probability that x is greater than 30?

Please do not solve using Microsoft Excel.  My professor does not teach using excel.  I would like to see the equation and steps involved for my own reference to study for my exams.

check_circle

Step 1

Given data

Step 2

1)

probability that x is less than or equal to 25 is given by

f(x=20) +f(x=25) = 0.20+0.15 = 0.35 (From Table)

2)

probability that x is greater than 30 ...

### Want to see the full answer?

See Solution

#### Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

### Other 