(a) .206 (b) .103 (c) .010 (d) .188 (e) .003
(a) .939 (b) .061 (c) .854 (d) .759 (e) .093 show using a TI-84
p = 0.8
n = 15
This is a binomial distribution.
P(X = x) = 15Cx * 0.8x * (1 - 0.8)15-x
a) P(X = 10) = 15C10 * 0.810 * 0.25 = 0.103
Option-B) 0.103
b) P(X > 10) = P(X = 10) + P(X = 11) + P(X = 12) + P(X = 13) + P(X = 14) + P(X = 15)
= 15C10 * 0.810 * 0.25 + 15C11 * 0.811 * 0.24 + 15C12 * 0.812 * 0.23 + 15C13 * 0.813 * 0.22 + 15C14 * 0.814 * 0.21 + 15C15 * 0.815 * 0.20
= 0.939
Option-A) 0.939
Rates of on-time flights for commercial jets are continuously tracked by the U.S Department of Transportation....
The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best reate with 80 % of its flights arriving on time. A test is conducted by randomly selecting 12 Southwest flights and observing whether they arrive on time. (a) Find the probability that exactly 6 flights arrive late.
The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best rate with 80 % of its flights arriving on time. A test is conducted by randomly selecting 2020 Southwest flights and observing whether they arrive on time. (a) Find the probability that at least 1515 flights arrive late.
(1 point) The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best rate with 70 % of its flights arriving on time. A test is conducted by randomly selecting 9 Southwest flights and observing whether they arrive on time. Find the probability that at most 5 flights arrive late.
UUUIUITULLUTULIUI Previous Problem List Next (1 point) The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best rate with 70 % of its flights arriving on time. A test is conducted by randomly selecting 10 Southwest flights and observing whether they arrive on time. Find the probability that exactly 4 flights arrive on time. Preview My Answers Submit Answers
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