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inessss [21]
3 years ago
13

What is f(5)? –8 –1 1 8

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
7 0
The function of 5 (or y when x is 5) can not be determined with this little information.
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Andrea and her friends love cake. Andrea has two cakes. Each of her friends will eat 2/3 of a cake. How many friends can Andrea
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3

Step-by-step explanation:

the answer is three friends can eat cake

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A construction company requires 25,400 bricks
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The time that it takes a randomly selected job applicant to perform a certain task has a distribution that can be approximated b
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Answer:

A task time of 177.125s qualify individuals for such training.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by

Z = \frac{X - \mu}{\sigma}

After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X. Subtracting 1 by the pvalue, we This p-value is the probability that the value of the measure is greater than X.

In this problem, we have that:

A distribution that can be approximated by a normal distribution with a mean value of 145 sec and a standard deviation of 25 sec, so \mu = 145, \sigma = 25.

The fastest 10% are to be given advanced training. What task times qualify individuals for such training?

This is the value of X when Z has a pvalue of 0.90.

Z has a pvalue of 0.90 when it is between 1.28 and 1.29. So we want to find X when Z = 1.285.

So

Z = \frac{X - \mu}{\sigma}

1.285 = \frac{X - 145}{25}

X - 145 = 32.125

X = 177.125

A task time of 177.125s qualify individuals for such training.

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3 years ago
Given the data set (200,150,325,100,75) find the mean of the data set
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Answer: 170

Step-by-step explanation:

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