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3 years ago

12

Sixty-three is 60% of____________

1 answer:

ArbitrLikvidat [17]3 years ago

3 0

To know how to do this set up the question:

63/x = 60/100
63*100=60x
6300/60=x
x=105

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Not all visitors to a certain company's website are customers. In fact, the website administrator estimates that about 5% of all

Gnom [1K]

Answer:

0.0135 = 1.35% probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

Step-by-step explanation:

For each visitor of the website, there are only two possible outcomes. Either they are looking for the website, or they are not. The probability of a customer being looking for the website is independent of other customers. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

5% of all visitors to the website are looking for other websites.

So 100 - 5 = 95% are looking for the website, which means that $p = 0.95$

Find the probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

This is P(X = 2) when n = 4. So

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = x) = C_{4,2}.(0.95)^{2}.(0.05)^{2} = 0.0135$

0.0135 = 1.35% probability that, in a random sample of 4 visitors to the website, exactly 2 actually are looking for the website.

5 0

2 years ago

Need to rewrite b^4(2b^2+b)

Yuri [45]

Are you trying to distribute the b^4 or factor it?

b^4 [(2b^2) + b]

Distributed:
[2(b^6) + (b^5)]

Factored:
b^5 [2b + 1]

4 0

3 years ago

Ify: 8% -2, which of the following sets represents possible inputs and outputs of

tangare [24]

Answer:

8

Step-by-step explanation:

2

7 0

2 years ago

Help me pls I,need it very much

Sunny_sXe [5.5K]

A straight line is 180 degrees. As a result, 180-35=x, or x=145

3 0

3 years ago

Round to the nearest thousand 5.2182

steposvetlana [31]

Answer:

5.218

Step-by-step explanation:

5 or more, you add one. Four or less, you change it to zero.

6 0

3 years ago