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Svetradugi [14.3K]
3 years ago
12

Please help me out!!!!!!!!!!!!

Mathematics
1 answer:
Lesechka [4]3 years ago
3 0

9514 1404 393

Answer:

  see below

Step-by-step explanation:

A number line usually has numbers increasing from the right. If each unit on the number line represents $100, then a gain of $500 would be represented by the point at +5 units (right of 0). The loss would be represented by a point at -5 units, located left of 0.

The points are equidistant from 0 in opposite directions.

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Qualitative graphs.
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In the Ardmore Hotel, 20 percent of the guests (the historical percentage) pay by American Express credit card. (a) What is the
xxMikexx [17]

Answer:

(a) The expected number of guests until the next one pays by American Express credit card is 4.

(b) The probability that the first guest to use an American Express is within the first 10 to checkout is 0.0215.

Step-by-step explanation:

The random variable <em>X</em> can be defined as the number of guests until the next one pays by American Express credit card

The probability that a guest paying by American Express credit card is, <em>p</em> = 0.20.

The random variable <em>X</em> follows a Geometric distribution since it is defined as the number of trials before the first success.

The probability mass function of <em>X</em> is:

P(X=x)=(1-p)^{x}p;\ x=0,1,2,3...,\ 0

(a)

The expected value of a Geometric distribution is:

E(X)=\frac{1-p}{p}

Compute the expected number of guests until the next one pays by American Express credit card as follows:

E(X)=\frac{1-p}{p}

         =\frac{1-0.20}{0.20}

         =4

Thus, the expected number of guests until the next one pays by American Express credit card is 4.

(b)

Compute the probability that the first guest to use an American Express is within the first 10 to checkout as follows:

P(X=10)=(1-0.20)^{10}\times0.20

                 =0.1073741824\times 0.20\\=0.02147483648\\\approx0.0215

Thus, the probability that the first guest to use an American Express is within the first 10 to checkout is 0.0215.

3 0
3 years ago
HELP ME!!! solve for x
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Answer:

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Step-by-step explanation:

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Therefore, by basic proportionality theorem:

\frac{12}{27}  =  \frac{6}{x}  \\  \\ x =  \frac{27 \times 6}{12}  \\  \\  \huge \red{ \boxed{x = 13.5 \: units}}

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3 years ago
How to write one and sixth tenths as a demical
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Answer

the answer is 1.6

Step-by-step explanation:

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The height of a building is 943 feet which is about 481 feet higher than another building. What is the height of the second buil
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Answer: 462


Step-by-step explanation:

943-481

Answer=462

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