Answer:
8
Step-by-step explanation:
first, 70-79 have 3 students
then 80-89 have 5 students
Answer:
A
Step-by-step explanation:
A point estimate is the value of a sample characteristic (obtained from the sample)
Sample mean is a point estimate of the population parameter
Answer:
5x - 68 = x
Step-by-step explanation:
number = x
5x - 68 = x
Solve for x:
5x - 68 = x
-68 = x - 5x
-68 = -4x
68 = 4x
x = 68/4
x = 17