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3 years ago

0.387 in a fraction in simplest form

Mathematics

2 answers:

Pavlova-9 [17]3 years ago

8 0

Answer:

3/87 is your answer don't mind marking brainliest

mezya [45]3 years ago

5 0

Answer:

Step-by-step explanation:

0.387

that last number (7) is in the thousandths place.....so put ur number, minus the decimal, over 1000

387/1000....and this will not reduce

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3 years ago

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3 years ago

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Answer:

a. P=0.01222

b. P=0.98778

c. The probability of rejecting the claim is now P=0.00298.

Step-by-step explanation:

In this case, we evaluate the sampling distribution for a population proportion π=0.8 with a sample size of 25.

We need to calculate the probability of getting a sample mean below 15, which means p=15/25=0.6.

The standard deviation of the sampling distribution is:

$\sigma_M=\sqrt{\frac{\pi(1-\pi)}{N}} =\sqrt{\frac{0.8\cdot0.2}{25}} =\sqrt{\frac{0.16}{25} } =0.08$

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$P(\bar X$

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If the value 15 is replaced by 14, we have a new value of p=14/25=0.56.

There will be less chances of rejecting the hypothesis.

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$P(\bar X$

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3 years ago