There are 2 cashews and 3 pistachios in a bag. You take one nut out at random and eat it, and repeat this until you get a cashew. Let X be the number of nuts you had to take in order to get a cashew. For example, if you took out a pistachio, another pistachio, and then a cashew, X would be 3. Find the expected value of X. (A) ½ (В) 4 (C) 2 (D) 3 (E) ½ (F) 1 (G) ½ (H) ½ A В C O E O F он

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 39E: Assume that the probability that an airplane engine will fail during a torture test is 12and that...
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Please help me with this math homework question. I really can not figure this out. 

There are 2 cashews and 3 pistachios in a bag. You take one nut out at random and
eat it, and repeat this until you get a cashew. Let X be the number of nuts you had
to take in order to get a cashew. For example, if you took out a pistachio, another
pistachio, and then a cashew, X would be 3. Find the expected value of X.
(A) ½
(B) 4
(C) 2
(D) 3
(E) ½
(F) 1
(G)
(H) ½
A
В
F
он
Transcribed Image Text:There are 2 cashews and 3 pistachios in a bag. You take one nut out at random and eat it, and repeat this until you get a cashew. Let X be the number of nuts you had to take in order to get a cashew. For example, if you took out a pistachio, another pistachio, and then a cashew, X would be 3. Find the expected value of X. (A) ½ (B) 4 (C) 2 (D) 3 (E) ½ (F) 1 (G) (H) ½ A В F он
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