Answer:
D
Step-by-step explanation:
the median is the middle value of a data set in ascending order
If there is not an exact middle then it is the average of the values on either side of the middle
Arrange data in ascending order
15, 17, 19, 21, 23, 25, 26, 28, 28, 30
the middle is between 23 and 25 , hence
median = 
= 
= 24
Answer:
need teachers help with this one
Step-by-step explanation:
Answer:
A large pizza costs $5 and a small pizza costs $3.
Let 'x' be the number of large pizzas and 'y' the number of small pizzas. We have that:
x + y = 150
5x + 3y = 570
Solving the system of equations:
x + y = 150 → 3x + 3y = 450 → 3y = 450 - 3x
5x + 3y = 570 → 5x + 450 - 3x = 570
2x = 120
x = 60
y = 150 - 60 = 90
Therefore. Carmen y Carlos will make 60 large pizzas and 90 small pizzas.
Answer:
the answer is C mean absolute deviation
