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jonny [76]
2 years ago
9

PLEASE HELP!!!! NO LINKS PLEASE!!!!

Mathematics
1 answer:
gulaghasi [49]2 years ago
8 0

Answer: 7

Step-by-step explanation:

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the motion of the object will stay the same

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Sammy has a number cube (dice). Calculate the following: What are the
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3/6 or 1/2.........................

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The owner of a small deli is trying to decide whether to discontinue selling magazines. He suspects that only 10% of his custome
Rainbow [258]

Answer:

0.55% probability that exactly 5 out of the first 13 customers buy a magazine

Step-by-step explanation:

For each customer, there are only two possible outcomes. Either they buy a magazine, or they do not. The probability of a customer buying a magazine is independent of other customers. So we use the binomial probability distribution 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.

10% of his customers buy a magazine

This means that P = 0.1

What is the probability that exactly 5 out of the first 13 customers buy a magazine?

This is P(X = 5) when n = 13. So

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

P(X = 5) = C_{13,5}.(0.1)^{5}.(0.9)^{8} = 0.0055

0.55% probability that exactly 5 out of the first 13 customers buy a magazine

3 0
3 years ago
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What are two numbers that multiply to equal -24 but add to equal +2
Sav [38]

Answer:

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Step-by-step explanation:

The sum is near 0, so the factors will be near √24, approximately 5. From your knowledge of multiplication facts, you know that 4×6 = 24.

The product will be negative when one of these factors is negative. Since you want a positive sum, the larger one must be positive.

  The numbers are 6 and -4.

7 0
2 years ago
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