A car dealerships goal is to sell a mean of 35 cars per day. In one week, it sold the following numbers of cars each day: 44 35 23 29 30 21 How many more cars would it have had to sell during the week to meet its goal?
A. 5
B. 25
C. 15
D. 35

Step-by-step explanation:

B. 25

Add 25 to the total of 220 then divide by the 7 days to get a mean of 35 cars

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph