SOLUTION: 1.) Suppose a uniform random variable can be used to describe the outcome of an experiment with outcomes ranging from 20 to 80. What is the probability that this experiment results

Question 512333: 1.) Suppose a uniform random variable can be used to describe the outcome of an experiment with outcomes ranging from 20 to 80. What is the probability that this experiment results in an outcome less than 30?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Suppose a uniform random variable can be used to describe the outcome of an experiment with outcomes ranging from 20 to 80. What is the probability that this experiment results in an outcome less than 30?
---
mean = (80+20)/2 = 50
--------------------------
6*sigma = (80-20) = 60
--------------------------
sigma = 10
---
z(30) = (30-50)/10 = -2
---
P(x < 30) = P(z < -2) = 0.0228
=================
Cheers,
Stan H.
=============
RELATED QUESTIONS
1. Suppose a uniform random variable can be used to describe the outcome of an experiment (answered by stanbon)

Suppose a uniform random variable can be used to describe the outcome of an experiment... (answered by jim_thompson5910)

Suppose x is a uniform random variable with values ranging from 20 to 70. Find the... (answered by ikleyn)

What is the age distribution of patients who make office visits to a doctor or nurse? The (answered by richard1234)

ANY HELP WILL BE GREATLY APPRECIATED Three balls are selected at random without... (answered by edjones)

A bag contains two 1-dollar bills, three 5-dollar bills, and two 10-dollar bills. An... (answered by greenestamps)

How many ways can three items be selected from a group of five items? Use the letters A,... (answered by math_helper)

Suppose a jar contains four balls labeled 1, 2, 3, and 4. A second jar contains five... (answered by edjones)

Suppose x is a uniform random variable with a=4 and b=20. Find the mean. (answered by Boreal)