I would like some assistance with the following probability distrution sampling distribution and inference for mean and population exercise

I would like detailed explanation as well

Your mother is on 3 different medications. The cost of one-month's supply of medication, for each medication, is $1500, $3000 and $96000. The best measure to present this data is the Select one: Oa. Mean. O b. Mode c. Median. Od. Range. e. Weighted Mean.The Economics Department is trying to determine the feasibility of hosting summer school Level I courses. The Undergraduate coordinator has determined that if less than 10% of Social Science students usually take summer school courses, then it is not feasible. A survey of 100 students reveals that 15% intend to take summer school. The test statistic for this test is Select one: O a. 0.17 O b. -1.40 c. 1 67 O d. -1.40 De. -1.67The weight of mangoes for export is normally distributed. If the standard deviation is known to be 2.64, how large does the sample need to be to calculate a 90% confidence interval with a margin of error of + 1 ounce? Select one: O a. 18 O b. 19 O c. 5 O d. 25 O e. 4The distribution of the number of cues of rum (200ML flask) sold at a sports bar each night is right skewed with a mean of 86 and a standard deviation of 10.3. If a sample of 40 nights is taken, the probability that more than 90 cues are sold on average is Select one: O a. 0.6517. O b. 0.9931. O C. 0.3483. O d. 0.3900. O e. 0.0069700178&page=14 O STATISTICS 15 A survey of 500 randomly selected Devon House ice cream customers showed that 85% preferred Devon Stout over Soursop ice wered cream. The standard error of the sample proportion is ut of 1.00 Select one: Flag a. 0.03567 n O b. 0.3785 C. 0.01597 d. 0.01798