Answer:
For mean
To show the mean of height measures for 40 students, you need to write-out exactly 40 heights into a calculator and add them up.
Then divide that total number by 40.
Step-by-step explanation:
Eg for 4 students
5 , 5.1, 5.2, 5.7 = 21ft
21/4 = 5.25ft.
Apply the same method but use 40 measures in addition for calulator or long addition. Then divide by 40.
Answer:
$3
Step-by-step explanation:
The probability distribution for X, the pizza shop's profit is given below:

The mean of X is the expected value of X.
Mean, 
=-0.6+3.6
=$3
The mean profit of the pizza's shop for a randomly selected delivery order for one of these pizzas is $3.
When you rearrange the problem, it can look like...pi=C/d, solve and you have your answer
Answer:
P(seventh grade winner) = 3/8
Step-by-step explanation:
Answer:

step by step:
3x+5=-2
move constant to the right-hand side and change it's sign
3x=-2-5
Calculate the difference
3x=-7
Divided both sides of the equation by 3