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The frequency histogram below summarizes the results of 90 summer days of Jeremy playing the game using his $5 roll per day strategy The first
The frequency histogram below summarizes the results of 90 summer days of Jeremy playing the game using his "$5 roll per day" strategy The first bar in the histogram represents those days where 40 to 59 tickets were Number of Tickets In a Day Over a 90 Day Period NOTE: Even though the data is grouped, the random variable is still discrete. The outcomes for the number of tickets are whale numbers. Sample space ( 40, 41, 42, 43, ...,279} Using the information in the histogram above complete the table and answer the questions below. Round numbers to the nearest hundredth, if necessary. Relative Frequency /P() Number of Tickets (Class) Midpoint Frequency Reduced Fraction = decimal 40-59 49 5 16 $5 0.18 60-79 24 1 0.27 66-08 968 D.22 109 5 1 0.12 120-139 129 5 140-159 20.04 160-179 169.5 89 5 200-219 209 5 35 ~ 0.03 220-239 229.5 240-259 0.01 260-279 269 5 2 0.02 1: Is the average number of ticjoete that Jeremy won over 90 days the mean or the expected value? 2. To find the meoverp soted value firid the sum of the midpoint multiplied by the relative frequency. The mean'expected value is (Round to the near est hundred th) 3. For spproximately what percent of the 90 days did the boy earn fewer than 100 tickets in a day? Round to the nearest hundred in il necessary For approximately what percentage of the 90 days did the boy earn 200 or more tickets per day? ares hundredth, if neomes 5. For approximately what percentage of the 90 days did the bay ean 300 or more tickets in a day? (Round to the nearest hundred th if necessary.)
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