Question:

1.For the following list of​ data, calculate ​(a) the​ mean, ​(b) the​ median, and ​(c) the mode or modes​ (if any).

6​, 9, 12​, 16​, 20

​(a) Calculate the mean.

The mean is _________

​(Typean integer or a​ decimal.)

2.For the following list of​ data, calculate ​(a) the​ mean, ​(b) the​ median, and ​(c) the mode or modes​ (if any).

136​, 138​, 150​, 134​, 150​, 139  

​(a) The mean is _______

. ​(Round to the nearest tenth as​ needed.)

3.For the following list of​ data, calculate ​(a) the​ mean, ​(b) the​ median, and ​(c) the mode or modes​ (if any).

1.2, 4.4, 5.7​, 7.4, 7.4, 4.2​, 2.2​, 4.2

​(a) The mean is ____

(Round to the nearest tenth as​ needed.)

4.For the given list of​ data, calculate the following.

​(a) the mean​ (b) the median​ (c) the mode or modes​ (if any)

129​, 130​, 137​, 120​, 133​, 120​, 129, 126

​(a) The mean is ____

​(Simplify your answer. Typean integer or a​ decimal.)

5.Find the range and standard deviation of the set of data.

41​, 32​, 36​, 35​, 35​, 38​, 35  

The range is ____