Gayle 52

This page lists questions and answers that were posted by visitors named Gayle 52.

Questions

The following questions were asked by visitors named Gayle 52.

Consider the probability function. (Give your answers exactly.) P(x) = 5 − x 10 , for x = 1, 2, 3, 4 (a) Find the mean. Incorrect: Your answer is incorrect. (my answer was 1). (b) Find the standard deviation. (my answer was 1 also on this one. Please help...

Answers

The following answers were posted by visitors named Gayle 52.

Ok, question is this the way to work this 5-4/10, 5-3/10, 5-2/10, 5-1/10 or do you divide by 4.

When you add up all the x's the total is 10 and it is over 10 that is how I came up with the mean of one the first time.

5-1/10= 4/10=.4 I do appreciate the patience that you have with me. Am I getting close to it???

Thank you, once I see it worked out I can do others, just done one and got the mean correct so far.