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3) If each of the letters in the word "PROBABILITY" were thrown separately into a hat and one letter is drawn from the hat, what is the probability that it is a vowel? ("Y" is a vowel in this example.) 4) Your friend is willing to give you 5:2 odds that the Warriors will beat the Raptors. Convert these odds to a probability value. 5:2 odds means a 28.6% probability that the Warriors will beat the Raptors. 5a) Rubinstein and Pfeiffer (1980) have suggested that instead of reporting weather forecasts in terms of the probability of rain, a more useful index would be the Expected Value (EV) of rain. Suppose the weather forecaster knows that there is a 30% probability of 5 inches of rain and a 70% probability of no rain on a given day. What is the EV for rain? 5b) Is this number more useful than the probability of rain? 6a) Every student in Mr. Weasel's class kept a record of the number of books read over a 3- month period. The data are: 15, 5, 8, 12, 1, 3, 1, 7, 21, 4. Compute the mean and median for these numbers. 6b) Which one seems better as a measure of central tendency