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Dmitry [639]
2 years ago
7

Evaluate the following expression. Round to the nearest hundredth when necessary. 27

Mathematics
1 answer:
Lisa [10]2 years ago
4 0

Answer:

27?

Step-by-step explanation:

27 is a whole number you know

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Let the probability of success on a Bernoulli trial be 0.26. a. In five Bernoulli trials, what is the probability that there wil
andreyandreev [35.5K]

Answer:

0.3898 = 38.98% probability that there will be 4 failures

Step-by-step explanation:

A sequence of Bernoulli trials forms the binomial probability distribution.

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.

Let the probability of success on a Bernoulli trial be 0.26.

This means that p = 0.26

a. In five Bernoulli trials, what is the probability that there will be 4 failures?

Five trials means that n = 5

4 failures, so 1 success, and we have to find P(X = 1).

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

P(X = 1) = C_{5,1}.(0.26)^{1}.(0.74)^{4} = 0.3898

0.3898 = 38.98% probability that there will be 4 failures

4 0
3 years ago
Ike has a paper route. When he carries the Sunday paper his backpack is very heavy and Ike ends up with very sore shoulders.Ike
RideAnS [48]

If Ike does not want more than 20 pounds in his backpack, this means he wants less than or equal to 20 pounds in his backpack. Because each paper costs 1/3 pound, this can be used as the rate of change and we can set up the following inequality:

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To solve this inequality, we should divide both sides of the equation by 1/3.

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Because this inequality means that x is less than or equal to 60, the answer is that Ike can carry 60 papers in his backpack.

Hope this helps!

8 0
3 years ago
Please help quickly !!
Nataly_w [17]

Answer:

16.5x == 465.3

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rate = 465.3 / 16.5

Let the rate be x

x = 465.3 / 16.5

Multiply each side by 16.5

16.5x =  465.3

6 0
3 years ago
Divide 3/16 by 5/2<br> EXPLAIN ANSWER PLZ! AND FAST! I WILL NAME YOU BRANLIEST!
Travka [436]

Use the KCF method to divide

3/6  /  5/2 =  3/6 x 2/5, which equals 1/5

Hope that helps :)

8 0
3 years ago
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A car dealership has 180 cars on their lot. If they increase their inventory by 25%, how many cars will be on the lot?
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Answer:

There will be 225 cars on the lot.

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