Question

clear days in omaha, nebraska the number of clear days in omaha, nebraska, per year over 12 months is shown. find the mean, median, mode, and midrange for the data. 10 10 7 9 12 14 13 11 7 8 7 9 send data to excel part: 0 / 4 part 1 of 4 (a) find the mean. rounding rule for the mean: round to one more decimal place than the data, as needed. mean:

Explanation:

Step1: Sum all data values

The data set is \(10, 10, 7, 9, 12, 14, 13, 11, 7, 8, 7, 9\).
Sum \(S = 10 + 10 + 7 + 9 + 12 + 14 + 13 + 11 + 7 + 8 + 7 + 9\)
\(S = 10 + 10 = 20\); \(20 + 7 = 27\); \(27 + 9 = 36\); \(36 + 12 = 48\); \(48 + 14 = 62\); \(62 + 13 = 75\); \(75 + 11 = 86\); \(86 + 7 = 93\); \(93 + 8 = 101\); \(101 + 7 = 108\); \(108 + 9 = 117\)

Step2: Calculate the mean

Mean \(\bar{x}=\frac{S}{n}\), where \(n = 12\) (number of data points).
\(\bar{x}=\frac{117}{12}=9.75\)
Rounding to one more decimal place than the data (data has 0 decimal places, so round to 1 decimal place): \(9.8\)

Answer:

\(9.8\)