Question

The following probability model shows the distribution of the most-popular-selling Girl Scout Cookies.
Cookie Type ..................................................... Probability
Thin Mints ................. 0.25
Samoas®/Caramel deLites™ .......... 0.19
Peanut Butter Patties®/Tagalongs™ ....... 0.13
Peanut Butter Sandwich/Do-si-dos™ ....... 0.11
Shortbread/Trefoils ............. 0.09
Other varieties ................ 0.23
(a) Verify that this is a probability model.
(b) If a girl scout is selling cookies to people who randomly enter a shopping mall, what is the probability that the next box sold will be Peanut Butter Patties®/Tagalongs™ or Peanut Butter Sandwich/Do-si-dos™?
(c) If a girl scout is selling cookies to people who randomly enter a shopping mall, what is the probability that the next CHAPTER TEST box sold will be Thin Mints, Samoas®/Caramel deLites™, or Shortbread/Trefoils?
(d) What is the probability that the next box sold will not be Thin Mints?


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  • CreatedApril 27, 2015
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