Answer:
A
Step-by-step explanation:
Brainliest PLEASE
Answer:
4 1/2
Step-by-step explanation:
Just do the math work it out on paper and check it!
Answer:
is wrong,6/20,3/10
Step-by-step explanation:
Answer:
a) x = 1.52
b) s = 1.16
Step-by-step explanation:
We have that:
5 students watched 0 movies.
9 students watched 1 movie.
5 students watched 2 movies.
5 students watched 3 movies.
1 student watched 4 movies.
(a) Find the sample mean x.
Sum divided by the number of students. So

(b) Find the approximate sample standard deviation, s.
Standard deviation of the sample.
Square root of the sum of the squares of the values subtracted from the mean, divided by the sample size subtracted by 1. So
