In the space below, 1) Indicate the variable type for each of the following variables in the data set by categorizing each variable as nominal, ordinal, equal-interval, or ratio, and
2) Explain the rationale for each categorization.
(6 pts total: .5 for each variable type, .5 for each rationale)
Exercise
Diet
Age Range
Weight change
Quality of Life
Intervention

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?