The following table shows the number of hours some teachers in two schools expect students to spend on homework each week:

school a 9 14 15 17 17 7 15 6 6
school b 12 8 13 11 19 15 16 5 8

part a: create a five-number summary and calculate the interquartile range for the two sets of data. (6 points)

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice