Question

these data are the annual in - state tuition, in thousands of dollars, for the 11 largest universities in ohio.
10 12 12 14 13 12 9 12 15 11 9
for the above data set, find the mean, median, midrange, and mode. round to one decimal place, if necessary.
part 1 of 4
(a) find the mean.
the mean is thousands dollars

Explanation:

Step1: Calculate the sum of data

The data set is \(10,12,12,14,13,12,9,12,15,11,9\).
Sum \(S = 10 + 12+12 + 14+13+12+9+12+15+11+9\)
\(S=131\)

Step2: Calculate the mean

The number of data points \(n = 11\).
The formula for the mean \(\bar{x}=\frac{S}{n}\)
\(\bar{x}=\frac{131}{11}\approx11.9\)

Answer:

\(11.9\)