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Volgvan
3 years ago
12

What’s the probability of P(T)?

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
6 0
Not enough to information provided
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A production process produces 2% defective parts. A sample of nine parts from the production process is selected. What is the pr
Natasha_Volkova [10]

Answer:

a. .0125

Step-by-step explanation:

For each part, there are only two possible outcomes. Either it is defective, or it is not. The probability of a part being defective is independent of any other part. 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.

2% defective parts.

This means that p = 0.02

A sample of nine parts from the production process is selected.

This means that n = 9

What is the probability that the sample contains exactly two defective parts?

This is P(X = 2).

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

P(X = 2) = C_{9,2}.(0.02)^{2}.(0.98)^{7} = 0.0125

0.0125 = 1.25% probability that the sample contains exactly two defective parts. The correct answer is given by option a.

8 0
3 years ago
A number f multiplied -12.3 is --73.8
grin007 [14]

Answer:

The answer is: 6

Step-by-step explanation:

Set up an equation and solve for f:

f x 12.3 = - 73.8

f = -73.8 / 12.3 = 6

Hope this Helps!! Have an Awesome Day!! (-:

6 0
3 years ago
Does anyone know the answer for the question below.
taurus [48]

Answer: option D is the answer

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Victoria is 4 years older than her neighbor. the sum of their ages is no more than 14 years. 1. enter an inequality that can be
Elis [28]
V = x + 4
x = neighbors age

x + x + 4 < = 14...here is the inequality
2x + 4 < = 14.....this is just a simplified form of the inequality
not sure which one u want to write, because they are both basically the same...one is just simplified a little

2x + 4 < = 14
2x < = 14 - 4
2x < = 10
x < = 10/2
x < = 5.....the oldest age of the neighbor is 5
5 0
3 years ago
A member only speaker series allows people to join for 6$ and then pay 4$ for every event attended .What is the maximum number o
nlexa [21]

Answer:

11

Step-by-step explanation:

50-6=44

44/4=11

3 0
3 years ago
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