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Free groceries To attract shoppers, a supermarket runs a weekly contest that involves

Stats Modeling the World | 4th Edition | ISBN: 9780321854018 | Authors: David E. Bock, Paul F. Velleman, Richard D. De Veaux ISBN: 9780321854018 481

Solution for problem 29 Chapter 10

Stats Modeling the World | 4th Edition

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Stats Modeling the World | 4th Edition | ISBN: 9780321854018 | Authors: David E. Bock, Paul F. Velleman, Richard D. De Veaux

Stats Modeling the World | 4th Edition

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Problem 29

Free groceries To attract shoppers, a supermarket runs a weekly contest that involves scratch-off cards. With each purchase, customers get a card with a black spot obscuring a message. When the spot is scratched away, most of the cards simply say, Sorryplease try again. But during the week, 100 customers will get cards that make them eligible for a drawing for free groceries. Ten of the cards say they may be worth $200, 10 others say $100, 20 may be worth $50, and the rest could be worth $20. To register those cards, customers write their names on them and put them in a barrel at the front of the store. At the end of the week the store manager draws cards at random, awarding the lucky customers free groceries in the amount specified on their card. The drawings continue until the store has given away more than $500 of free groceries. Estimate the average number of winners each week.

Step-by-Step Solution:
Step 1 of 3

Stats 401 Week 2 Relative frequency = How many times appeared in category ÷ Total items in category (like finding percent without multiplying by 100 at the end) For the median, if there is an even amount of number given then add the two middle terms then divide by 2. EX: 1 2 3 4 5 6. The two middle terms are 3 and 4 so 3 + 4 = 7. Then 7/2 = 3.5 (finding the average of those numbers). If there isn’t a mode (1 2 3 4 5 6) then write “NO MODE” not “The mode is zero” because that implies that there is the number 0 and that is what appears the most. Peak of curve is in the middle When the mean = median = mode the distribution is bell shaped or symmetric. Median > mean then it is left skewed Med

Step 2 of 3

Chapter 10, Problem 29 is Solved
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Textbook: Stats Modeling the World
Edition: 4
Author: David E. Bock, Paul F. Velleman, Richard D. De Veaux
ISBN: 9780321854018

The answer to “Free groceries To attract shoppers, a supermarket runs a weekly contest that involves scratch-off cards. With each purchase, customers get a card with a black spot obscuring a message. When the spot is scratched away, most of the cards simply say, Sorryplease try again. But during the week, 100 customers will get cards that make them eligible for a drawing for free groceries. Ten of the cards say they may be worth $200, 10 others say $100, 20 may be worth $50, and the rest could be worth $20. To register those cards, customers write their names on them and put them in a barrel at the front of the store. At the end of the week the store manager draws cards at random, awarding the lucky customers free groceries in the amount specified on their card. The drawings continue until the store has given away more than $500 of free groceries. Estimate the average number of winners each week.” is broken down into a number of easy to follow steps, and 160 words. This full solution covers the following key subjects: . This expansive textbook survival guide covers 31 chapters, and 1357 solutions. Since the solution to 29 from 10 chapter was answered, more than 446 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 29 from chapter: 10 was answered by , our top Statistics solution expert on 03/16/18, 04:57PM. Stats Modeling the World was written by and is associated to the ISBN: 9780321854018. This textbook survival guide was created for the textbook: Stats Modeling the World, edition: 4.

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Free groceries To attract shoppers, a supermarket runs a weekly contest that involves