Statistics Solutions

[See] The useful life of a particular type of printer is measured by a random variable x with probability density function

Question:

The useful life of a particular type of printer is measured by a random variable x with probability density function

\[f(x)=\left\{ \begin{matrix} 0.05{{e}^{-0.05x}}\quad if\quad x\ge 0 \\ 0\quad if\quad x<0 \\ \end{matrix} \right.\]

where x denotes the number of months a randomly selected printer has been in use.

  1. What is the probability that a randomly selected printer will last between 10 and 15 months?
  2. What is the probability that a randomly selected printer will last less than 8 months?
  3. What is the probability that a randomly selected printer will last longer than one year?
  4. What is the expected life of a randomly selected printer?

Price: $2.99
Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document


∴ Other downloads you may be interested in ∴

log in to your account

Forgot password?
Don't have a membership account?
REGISTER

reset password

Back to
log in

sign up

Back to
log in