Question 18 What is the Variance for the following discrete probability distribution? X P(X) 0 0.36 0.1 2 0.03 3 0.14 4 0.37\fQuestion 20 What is the probability of randomly selecting a Old product, given you selected a Senior? New product Old product Totals Senior 13 21 34 Adult 20 15 35 Totals 33 36 69Question 21 For this binomial distribution, what is the standard deviation for the number of successes when sample size is 54 with a probability of 0.56?Question 22 For this binomial distribution. what is the variance for the number of successes 1when sample size is 17 with a probability of I172? Question 25 1 points Save An Using the Empirical Rule, in a normal distribution what percentage of values would fall into an interval of 91.8 to 178.2 where the mean is 135 and standard deviation is 43.2? Please format to 3 decimal places