# Here are the 2013 tuitions (in dollars) of 10 randomly selected 2 -year, public colleges (Source: U.S. Department of Education): 1772 1752 3485 1138 2328 1854 3598 3722 4680 3030​​ a. Find the mean tuition.

Question
Ratios, rates, proportions
Here are the 2013 tuitions (in dollars) of 10 randomly selected 2 -year, public colleges (Source: U.S. Department of Education):
1772 1752 3485 1138 2328
1854 3598 3722 4680 3030​​
a. Find the mean tuition.

2021-01-16
The numbers of the 2013 tuitions (in dollars) of 10 randomly selected 2 year, public colleges are
1772,1752,3485,1138,2328,1854,3598,3722,4680,3030.
The mean of a set of observations is their sum divided by the number of observations, e.g. The mean x of n observation x1,x2...,xn is given by: PSKn x=1/n(x1+x2+...+xn)=1/n*Σxi i=1ZSK
From the above definition we have mean tuition is
PSKx=1/10(1772+1752+3485+1138+2328+1854+3598+3722+4680+3030) =27359/10=2735.9ZSK
Therefore, the mean tuition is 2735.9

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