X - the score he must get
He must get at least 92 points.
He must get at least 92 points.
I WILL GIVE BRAINLIest PLEASE HELP
2 answers:
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Answer:
a) 0.238 = 23.8% probability that the selected passenger had Phoenix as a final destination.
b) 0.762 = 76.2% probability that the selected passenger did not have Phoenix as a final destination.
c) 0.054 = 5.4% probability that the selected passenger was connecting and missed the connecting flight.
d) 0.709 = 70.9% probability that the selected passenger was a connecting passenger and did not miss the connecting flight.
e) 0.249 = 24.9% probability that the selected passenger either had Phoenix as a initial destination or was delayed overnight in Phoenix.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
(a) Compute the probability that the selected passenger had Phoenix as a final destination.
1900 out of 8000 passengers. So
0.238 = 23.8% probability that the selected passenger had Phoenix as a final destination.
(b) Compute the probability that the selected passenger did not have Phoenix as a final destination.
8000 - 1900 = 6100 out of 8000 passengers. So
0.762 = 76.2% probability that the selected passenger did not have Phoenix as a final destination.
(c) Compute the probability that the selected passenger was connecting and missed the connecting flight.
430 out of 8000 passengers. So
0.054 = 5.4% probability that the selected passenger was connecting and missed the connecting flight.
(d) Compute the probability that the selected passenger was a connecting passenger and did not miss the connecting flight.
6100 - 430 = 5670 out of 8000 passengers. So
0.709 = 70.9% probability that the selected passenger was a connecting passenger and did not miss the connecting flight.
(e) Compute the probability that the selected passenger either had Phoenix as a initial destination or was delayed overnight in Phoenix.
1900 initial, 95 delayed. So 1995 out of 8000.
0.249 = 24.9% probability that the selected passenger either had Phoenix as a initial destination or was delayed overnight in Phoenix.