Answer my four questions below and you will get 20 points.

number one: what is one plus one?
number two: what is one minus one?
number three: what is one times one?
number four: what is one divided by one?

Which is the correct excel formula for the 80th percentile of a distribution that is n(475, 33)? =norm.dist(80,475,33,1) =norm.inv(0.80,475,33) =norm.s.inv((80-475)/33)?

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7