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Svetlanka [38]
3 years ago
9

An airline has a policy of booking as many as 15 persons on an airplane that can seat only 14. ​(Past studies have revealed that

only 88.0​% of the booked passengers actually arrive for the​ flight.) Find the probability that if the airline books 15 ​persons, not enough seats will be available. Is it unlikely for such an overbooking to​ occur?
The probability that not enough seats will be available is___
Is it unlikely for such an overbooking to​ occur?
Mathematics
1 answer:
aksik [14]3 years ago
7 0

Answer: No, it is unlikely for such an overbooking to occur.

Our required probability is 0.146.

Step-by-step explanation:

Since we have given that

Number of persons on an airplane book = 15

Probability of booked passengers actually arrive for the flight = 88%

We need to find the probability that if the airline books 15 persons, not enough seats will be available.

We will use "Binomial distribution":

Probability would be

P(X=15)=(0.88)^{15}=0.146

No, it is unlikely for such an overbooking to occur.

Hence, our required probability is 0.146.

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Pls answer me this all question​
Scorpion4ik [409]

Answer:

a. 5 \frac{21}{40}

b. \frac{1}{42}

Step-by-step explanation:

a. \: 12 \frac{2}{5}  - 6 \frac{7}{8}

\frac{62}{5}  -  \frac{55}{8}

\frac{62}{8}  \times   \frac{8}{8}  -   \frac{55}{8}   \times  \frac{5}{5}

\frac{62 \times 8 - 55 \times 5}{40}

\frac{221}{40}

5 \frac{21}{40}

b. \:  \frac{3}{14}  -  \frac{4}{21}

\frac{3}{14}  \times  \frac{3}{3}  -  \frac{4}{21}  \times  \frac{2}{2}

\frac{3 \times 3}{42}  -  \frac{4 \times 2}{42}

\frac{1}{42}

Hope it is helpful....

5 0
2 years ago
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I have two fair spinners. The first has the numbers 1, 2, 3 and 4. The second has the numbers 2, 3, 4 and 5. I spin both spinner
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Step-by-step explanation:

There are 4 * 4 = 16 outcomes from spinning these spinners. You get an odd number by multiplying an odd number by an odd number. Since there are 2 odd numbers on both spinners the successful outcomes are 2 * 2 = 4 so probability is 4 / 16 = 1 / 4.

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A plumber charges a fixed fee for coming to your house, then charges a fixed amount per hour on top of this. X= the time the job
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Step-by-step explanation:

 This problem expects us to model the equation for the total cost of the services of the plumber given the conditions stated.

Say the fixed amount charged for coming to your house is $10

say the fix amount charged per is $3

and the time spent to do the job is X

Hence the scenario can be modeled as

Y= 3x+10

the equation is similar to the equation of a straight line

Y= mx+c

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