The following sample data set lists the number of cars that BMW sold each day during December. Construct a frequency distribution that has 8 classes. Use the distribution to find the mean, variance and standard deviation of the distribution. Find the relative frequency, cumulative frequency and cumulative relative frequency of the distribution 32 10 27 22 14 2 33 11 16 27 11 14 21 43 23 1 13 42 8 9 6 7 4 3 22 12 4 1 4 75 13

A sample of 300 people were surveyed to find out what kind of investment they were engaged in. Bitcoin Stock Women 83 64 Men 52 101 1) What is the probability that a person selected will invest in stocks, given that the person is a man? 2) The selected person invests in stocks, what is the probability that that person is a woman 3) What is the probability of selecting someone who invests in Bitcoin or is a man? 4) What is the probability of selecting someone who invests in Bitcoin only?

Use the set information provided below to answer questions a-e Universal set 1 2 3 4 5 6 7 8 9 10 11 12 13 Set A 1 2 3 4 5 6 7 8 9 10 11 Set B 1 3 4 7 8 Set C 1 4 6 8 9 11 Set D 1 4 6 7 8 9 10 11 Find the elements and the probability of: 1 P(AB) 2 P(AUD)' 3 P(A/B) 4 P(CUD) 5 P[(AnB)UC]

65% of people worldwide fear that a recession is coming within the next 6 months. In a random sample of 10 people, what is the probability that 1) At most 3 people fear that a recession is coming within the next 6 months 2) More than 8 fear that a recession is coming within the next 6 months 3) At least 4 fear that a recession is coming within the next 6 months 4) For x= 0 to 10, determine the probabilities of the event and find the variance and standard deviation of worldwide fear that a recession is coming within the next 6 months.

The study found drive-thru customers waited an average of seven minutes with a standard deviation of 3 minutes. Assume the distribution of the wait time follows the normal probability distribution. if we select a customer at random, find the probability that the customer wait: 1) Between 3 and 5 minutes? 2) more than 6 minutes? 3) Less than 2 minutes? 4) What waiting time represents the middle 75%? 5) What waiting time represents the top 20%