1. the data set shows the january 1 noon temperatures in degrees fahrenheit for a particular city in each of the past 6 years.
28 34 27 42 52 15

a. what is the five-number summary of the data set?
b. what is the mean, x(theres a line on top of the x) , of the data set?
c. what is the sum of the squares of the differences between each data value and the mean? use the table to organize your work.
d. what is the standard deviation of teh data set? use the sum f

Mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.