Iq scores are normally distributed with a mean of 100 and a standard deviation of 15. if a certain statistician has an iq of 122, what percent of the population has an iq less than she does?

a. 7%
b. 22%
c. 93%
d. 99%
e. 47%

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if