There are 8 pencils in a package. How many packages will be needed for 76 children if each child gets 10 pencils ?
2 answers:
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The mean = 28.55, while the standard deviation is 13.16
1. The histogram is an attachment
<h3>How to calculate for the mean of the data set</h3>We have the following numbers
24 30 4 42 40 26 23 36 12 45 29 21 34 16 47 28 32 54 19 9
The sum of these numbers is given as
571
The total numbers = 20
The mean = 571/20
= 28.55
<h3>2 = How to find the standard deviation</h3>= (24 - 28.55)2 + ... + (9 - 28.55)/20 - 1
= 3292.95/19
= 173.31315789474
s = √173.31315789474
= 13.164845532506
Read more on mean and standard deviation here:
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