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vivado [14]
3 years ago
13

There are 250 economy class seats on board. The airline sells some economy class seats at a discount price of $440 in advance an

d reserve a number of seats to sell at the full price of $770. Suppose that Dallas One Airline can always sell all discount tickets, and the demand for full price tickets is normally distributed with a mean of 100 and a standard deviation of 25. What is the probability that there will be no empty seat when the Dallas One Airline uses the optimal protection level? Choose the closest number.
Mathematics
1 answer:
Drupady [299]3 years ago
3 0

Answer:

Check the explanation

Step-by-step explanation:

Cost of over reserving full cost tickets, Co = $440 ( empty seats as we cannot get even the discounted revenue)

Cost of under reserving Cu = 770-440 = $330 ( because you sell more discounted tickets)

Now critical ratio = Cu / (Cu+Co) = 330/770 = 0.42857

Now for above critical ratio ,z = -0.18 ( refer standard normal distribution table)

Optimal protection level = mean +z*standard deviation = 100-0.18*25 = 95.5 = 96

The possible costs include: all the above. You may need to provide compensation to passenger and make alternative travel arrangements. Also passenger won't be happy by over booking and their will be loss of good will.

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I'm too lazy to do the work by myself anyway, someone please help me thank you <3 !!
In-s [12.5K]

Answer:

98

Step-by-step explanation:

10-3=7

7x7=49

49 x2 = 98

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7 0
2 years ago
Please help help help thank you
Alex787 [66]

The side RS is 7 cm. For a similar triangle, the ratio of the opposite side of the two similar triangle are the same.

<h3>What is SAS similarity theorem?</h3>

ΔABC ~  ΔDEF only if the ratio of two sides of ΔABC and corresponding two sides of ΔDEF is equal, and the angle included in both sides are congruent.

Suppose the two sides of ΔABC are AB and BC, and that of DEF be DE and EF, then for SAS similarity, we need

For the similar triangle;

\rm \frac{HG}{TS} = \frac{FG}{RS} \\\\ \frac{12}{4} =\frac{21}{RS} \\\\ RS= 7 cm

Hence, the side RS is 7 cm.]

To learn more about the SAS similarity theorem, refer to link;

brainly.com/question/22472034

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5 0
2 years ago
To assess the effectiveness of a kindergarten-readiness program, 15 children from a random sample were each given a diagnostic a
kobusy [5.1K]

Answer:

D) We are 95 percent confident that the mean difference in scores for all children in the program is between 20.1 points and 23.9 points.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

95 percent confidence interval (20.1,23.9)

We are 95% sure that the population mean(that is, the mean for all children in the program) is in this interval. So the correct answer is given by option D.

8 0
2 years ago
I need help... someone help me.... I need the answer and you want to save 20,000 for a down payment on a home by making regular
Marizza181 [45]

Answer:

279.36

Step-by-step explanation:

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x= payment

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4 0
3 years ago
scale drawing: Steve drew a scale drawing of the town library. The parking lot, which is 45 meters wide in real life, is 126 cen
Veseljchak [2.6K]

Answer:

1.05 cm = 75 cm

Step-by-step explanation:

First, convert 45 meters into centimeters. You will get 4500 centimeters. Then, convert the numbers into a fraction form (126/4500). Divide the numerator and denominator by 15 to get 4.2/300. If you then divide them both by 4 you will get 1.05/75. This means that every 1.05 cm on the paper represents 75 cm of the real life lot.

7 0
3 years ago
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