open Reattempt last question below, or select another question The probability t
ID: 3376488 • Letter: O
Question
open Reattempt last question below, or select another question The probability that a random smoker will develop a severe lung condition in his or her lifetime is about 0.3. If you have 4 friends who smoke, are the conditions for the binomial model satisfied? Onot enough information is given O no O yes Suppose these four friends do not know each other and we can treat them as if they were a random sample from the population. Is the binomial model appropriate? What is the probability that (a) none of them will develop a severe lung condition? 019 . # Preview (b) One will develop a severe lung condition? 0 19 Preview (c) That no more than one will develop a severe lung condition? 06517Preview Points available on this attempt: 29.1 of original 30 Unlimited attempts. Score on last attempt: (7.5, 0, 0, 7.5), Score in gradebook: (7.5, 0, 0, 7.5), Out of: (7.5, 7.5,7.5, 7.5) DOLL F4 FS F6 F7 F8 F9 F10 F11 F12 Prtscr nsert 4 5 6 7 8 9 0Explanation / Answer
Solution
(a) Given that n =4 and p = 0.3
P(none) = 4C0 (0.3)0 (0.7)4 = 0.2401
(b) P(X=1) = 4C1 (0.3)(0.7)3 = 0.4116
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