Discussion:
IQ scores have u = 100 and o = 15. The distribution is normal. A new drug is touted as having the effect of raising IQ by 10 points and we recruit a sample of n = 36 people to test it on. Using a=.05, how much power will we have? Please show work.
What is the probability of randomly selecting a red haired person from this distribution below?
Grey Brown Blonde Black Red
Eyes Blue 2 14 6 11 9
Green 4 17 8 9 8
Brown 6 19 9 28 9
Using the above chart what is the probability of selecting a blue eyed blond from this distribution?
Given that the probability that Nancy will wear blue to class is 20% and the probability that Tim will wear blue to class is 30%. What is the probability that they will both wear blue to class on same day?
What is probability that one of them will wear blue to class?