Antonia likes calculating the sum of the digits that she sees on her digital clock (think of a microwave clock). For example, if
1 answer:
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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
Here ya go. I hope this helps! :) (It was much easier to do this than to try and type it out, in my opinion)
