answer all questions

1 1) After Bill attends the first class of the semester and reads the syllabus, he decides that the most likely grade he will receive for the course is a "B". This is an example of using the ( classical method signing probability. B) simple method C) empirical method D) subjective method E) none of the above 12) Which one of the following statements about probability is not true? A) The probability of any event m ny event must range from 0 to 1. B IfP(A) - 1, then with certainty, Event A must occur. C) If Events A and B are mutually exclusive, then Event A and Event B are not independent. D) If P(A) - 0, then with certainty, Event A will not occur. E) none of the above 13) Since a sample is a subset of the population, the sample mean A) is always larger than the mean of the population, B) must be equal to the mean of the population. C) can be larger, smaller, or equal to the mean of the population. D) is always smaller than the mean of the population E) cannot be equal to the mean of the population 14) If two samples, sample A and sample B, have the same mean, median, and mode, then the standard deviation A) of sample A must be equal to the standard deviation of sample B. B) of sample A must be less than the standard deviation of sample B. C) of sample A must be greater than the standard deviation of sample B. D) of sample A may be less than or greater than the standard deviation of sample B. E) none of the above 15) The table below is an example of a Undergraduate Major Graduate School Business Engineering Others Total Yes 42 63 140 No 91 104 65 260 Total 126 1 46 128 400 A) frequency distribution. B) cumulative frequency distribution. C) relative frequency distribution. D) contingency table. E) none of the above