Mathematics, 07.03.2020 05:27, Yuii
You collect baseball cards and buy sealed packs from the grocery store and clearly have no idea which cards are inside (nor if they will be valuable). Suppose 1 in every 250 cards is valuable and a package contains 10 cards which are selected independently and randomly at the factory.
(a) If you purchase a package, what is the probability that there are no valuable cards? t you pucha a packae, wst s the probbiiythat thee is a east I valuable curd
(c) What is the expected number of valuable cards in the package?
(d) Suppose you buy 5 packages, what is the probability that none of these packages have valuable cards in them?
(e) Suppose you keep buying packages until you get 1 valuable card. What is the probability that you buy 2 packages?
(f) Suppose you desire to have 3 valuable cards in your collection. What is the probability that it takes 20 packages to accomplish this? On average, how many packages would it take to accomplish this?
Answers: 3
Mathematics, 21.06.2019 17:40, skylerdemi1
A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2
Answers: 2
Mathematics, 22.06.2019 00:30, luis83113
Afarm is to be built in the shape of quadrilateral abcd, as shown below. all four sides are equal. a rhombus abcd is shown with diagonal ac equal to 15.5 feet and diagonal bd equal to 13.2 feet. what is the area of the farm? pleas only pick from the 4 below 62 square feet 52.8 square feet 57.4 square feet 102.3 square feet
Answers: 2
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