Probability 279 Question: 280 81 What is the probability of randomly selecting a Student or a Professor? Mutually exclusive. 182 New service Old Totals service Student 20 20 40 Professor 11 22 5 11 Totals 31 31 62Calculate the variance products sold per store using this population data 81, 0, 41, 0, 32, 97 1362.47 QUESTION 16 Calculate the standard deviation products sold per store using this population data 81, 0, 41, 0, 32, 97 36.911 points Save Ansv For this binomial distribution, what is the variance for the number of successes when sample size is 159 with a probability of 0.24?Question 13 For this binomial distribution, what is the standard deviation for the number of successes when sample size is 188 with a probability of 0.39?Calculate the mean number of errors using these numbers: 56, 52, 51, 16, 29, 78. Use two decimal points for all questions in this test unless a specific question 8.88