Answer
a) Normal
b) Negative exponential
c) Normal
Work Step by Step
a) In order to solve this problem, we put all the data into Microsoft Excel. Then, we highlight all the data, click the insert tab, and select the picture that resembles a histogram. When we do this, we can see that the data are bell shaped, hence it is a normal distribution.
b) Using the Control Down command (Ctrl+d), make all the values in the first column exponents with base $1$0. Then, doing the same process as in part a), we create a histogram. This histogram will be a negative exponential.
c) The data are already in Excel, so use Excel to create a normal quantile plot. After we create the normal quantile plot, we can see if the data are in a straight line. In this case, since the data are in a straight line, we can see that the distribution is normal.
