Mathematics, 07.03.2020 05:43 sebasm4842
The lifetime, in years, of a certain type of pump is a random variable with probability density function:
f(x)= {64/(x+2)^5 x>0
0 x<=0}
a. What is the probability that a pump lasts more than two years?
b. What is the probability that a pump lasts between two and four years?
c. Find the mean lifetime.
d. Find the variance of the lifetimes.
e. Find the cumulative distribution function of the lifetime.
f. Find the median lifetime.
g. Find the 60th percentile of lifetimes.
Answers: 1
Mathematics, 21.06.2019 18:00
Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?
Answers: 1
Mathematics, 21.06.2019 20:30
Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?
Answers: 1
Mathematics, 22.06.2019 00:00
Abook store is having a 30 perscent off sale. diary of the wimpy kid books are now 6.30 dollars each what was the original price of the books
Answers: 1
The lifetime, in years, of a certain type of pump is a random variable with probability density func...
Mathematics, 02.04.2021 20:40
Mathematics, 02.04.2021 20:40
Mathematics, 02.04.2021 20:40
History, 02.04.2021 20:40
History, 02.04.2021 20:40
Biology, 02.04.2021 20:40
Mathematics, 02.04.2021 20:40
History, 02.04.2021 20:40
Physics, 02.04.2021 20:40