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LekaFEV [45]
3 years ago
5

1.) If 60% of a number is 18, what is 90%of the number?

Mathematics
2 answers:
Dmitriy789 [7]3 years ago
8 0
C. 27
(18 is 60% of the number 30, and 90% of 30 is 27)
D. $14.80
(20% of 74 is 14.8)
Hope this helps you out a bit!
ICE Princess25 [194]3 years ago
7 0
Question Two is D. $14.80
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Sixty-five percent of employees make judgements about their co-workers based on the cleanliness of their desk. You randomly sele
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Answer:

The outcomes of this binomial distribution that would be considered unusual is {0, 1, 2, 8}.

Step-by-step explanation:

The outcomes provided are:

(A) 0, 1, 2, 6, 7, 8

(B) 0, 1, 2, 7, 8

(C) 0, 1, 7, 8

(D) 0, 1, 2, 8

Solution:

The random variable <em>X</em> can be defined as the number of employees who judge their co-workers by cleanliness.

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

P (X) = 0.65

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An unusual outcome, in probability theory, has a probability of occurrence less than or equal to 0.05.

Since outcomes 0 and 1 are contained in all the options, we will check for <em>X</em> = 2.

Compute the value of P (X = 2) as follows:

P(X=2)={8\choose 2}(0.65)^{2}(0.35)^{8-2}

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Similarly check for X = 6, 7 and 8.

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P (X = 7) = 0.1373 > 0.05

X = 7 not unusual

P (X = 8) = 0.0319

X = 8 is unusual.

Thus, the outcomes of this binomial distribution that would be considered unusual is {0, 1, 2, 8}.

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Step-by-step explanation:

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