Question

Assume the random variable X is normally distributed with u=50 and standard deviation o=7. compute the probability.

P(X>34)=?

please explain how to get the answer.

Answer 1

this is asking for the Probability that X > 34
we need to know more to answer the question

Answer 2

@phi lol sorry i forgot to put the first part.

Answer 3

the problem says the mean = 50 and the standard deviation is 7
can you change 34 to multiples of s.d. below the mean ?

Answer 4

what?

Answer 5

see http://www.mathsisfun.com/data/standard-normal-distribution.html
scroll down to "normal distribution"

Answer 6

ok?

Answer 7

not understanding.