QUESTION 1Responses to survey question number five, “How much money (in U.S. dollars) do you expect to spend on stereo and consumer electronics equipment in the next 12 months?” represents what type of variable?NumericalContinuous and numericalDiscrete and numericalCategoricalQUESTION 2Given that a data set has the following data values: 2, 4, 6, what would be the standard deviation?1.1541.202If we are selecting only one card from a standard deck of 52 playing cards, then the probability of picking red and ace would be:None of the below.2/52 = 0.03830/52 = 0.5826/52 = 0.50QUESTION 9If two events are mutually exclusive, the probability that both occur at the same time is0.501.000.00Cannot be determined from the information given.QUESTION 10The probability of a price increase is 0.24 (24%) whereas the probability of a price decrease is 0.05 (5%). What is the probability that there will be either a price increase or a decrease?0.20830.190.0120.29QUESTION 11A college class believes that the average grade average of business students and the average grade averages of biology students are different. The class found that the actual grade averages of a sample of 11 business students was 3.5 and the average grade average of a sample of 12 biology students was 3.2. What test do you use for this study?t test for two proportionsF testZ test for two meanst test for two means