according to college survey, 22% of all students work full time. find the mean for the random variable X, the number of students
who work full time in smaples of size 16
1 answer:
Answer:

Step-by-step explanation:
Given


Required
Determine the mean of the proportion
The mean or expected value of a sample is calculated by multiplying the sample size by the proportion as follows;

Where
-- Sample Size
-- Proportion
So:
becomes

Convert 22% to decimal


<em>Hence, the mean is 3.52</em>
You might be interested in
Answer is in the file below
tinyurl.com/wpazsebu
Answer:
€7200
Step-by-step explanation:
20%---------1440
100%----------y
y= 100×1440/20
y= 144000/20
y= €7200
price before decrease= €7200
28 , i think :) I hope it’s correct and good luck
Answer:
answer is 10/9
:-)))☺️☺️
I hope it helps you
Answer: Brand B is the best unit price
Explanation:
Brand A:
6 = 54$
1 = 54/6
1 = 9$
Brand B:
9 = 63$
1 = 63/9
1 = 7
So brand B is much cheaper