Saturday
March 28, 2015

Homework Help: Probability and statistics

Posted by Arun on Friday, March 2, 2012 at 3:23am.

5. The probabilities that the lifetime of a randomly chosen device is below average, average, above average are respectively 0.2, 0.5, and 0.3. The probability that the 3 randomly chosen devices lifetimes of 2 are above average and 1 below average equals

Choose one answer
a. 0.054
b. 0.018
c. 0.036
d. 0.012

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Probability and statistics - The probability that the life time of randomly ...
statistics - 5) The lifetime of a medical device s a normally distributed rv ...
Maths - In a class of 75 students,15 are above average,45 are average and the ...
more statistics - The percent of fat calories that a person in America consumes ...
COLLEGE MATH - In 2003, the probability that a randomly chosen bag of cement ...
stat - Problem 2. THE PROBABILITY THAT A RANDOMLY CHOSEN SALES PROSPECT WILL ...
stats - The percent of fat calories that a person that in America consumes each ...
statistics - It is well known that the heights of individual American men are ...
statistics - Three cards are randomly chosen, without replacement, from a ...
Binomial and Poisson distribution - A machine produces ribbon in which flaws ...

Members