8. A set of data is normally distributed with a mean of 100 and variance of 25. Approximately what percent of the data would you expect to be between 75 and 100? a) 48 % b) 16 % c) 50 % d) 34 % e) none of the above 9. The cumulative equency of the 4th bin in a frequency distribution table represents: a) the percentage of data that falls into the 4th bin b) the frequency of data values that are larger than the minimum value of the 4th bin c) the number of data values that are less than the maximum value of the 4th bin (1) the relative proportion of data that is within 2 standard deviations of the mean e) the cumulative deviation of the 4th bin in percent 10. If X ~ N (350,1 62) then the standard deviation equals a) 16 b) 350 c) 4 d) 256 e) none of the above 11. The variance of a sample of data is 4. The standard deviation of this sample is: a) 16 b) 4 c) 2 d) 1 e) none of the above