PROBLEM NO.1 (20 points) 1. If the individual class frequency is divided by the total frequency, the result is the A. midpoint frequency B. cumulative frequency C. stem and leaf plot D. relative frequency 2. Upon discovering an improperly adjusted drill press, Ali Ahmad, Director of Quality Control, ordered an inspection of "every fifth casting drilled on the evening shift." Less than 1% of the castings were defective; so, Ali released the evening shift's production to assembly. This is an example of A nonparametric statistics B. nominal data C. descriptive statistics D. inferential statistics 3. The average of the squared deviations from the arithmetic mean is called the A. standard deviation B. mean absolute deviation C. variance D. coefficient of variation