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balandron [24]
2 years ago
12

When using pi, do you use 3.14 or 3.141592653?

Mathematics
2 answers:
alexandr1967 [171]2 years ago
5 0

i always use 3.1415 but just to be safe use the pi symbol  :)

sergey [27]2 years ago
4 0

Answer:

You would usually use 3.14

Step-by-step explanation:

It kind of depends on where you are using it. In an equation, pi would be used as 3.14 and the answer would be approximated. To write it anywhere else (I dont know where else you would though), you would do the pi symbol. I hope this helps.

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Answer:

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Step-by-step explanation:

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Alex Ar [27]

Answer:

b) 6.68%

Step-by-step explanation:

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Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

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

The Z-score measures how many standard deviations the measure is from the mean. 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, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The mean score on the scale is 50. The distribution has a standard deviation of 10.

This means that \mu = 50, \sigma = 10

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The proportion is 1 subtracted by the p-value of Z when X = 65. So

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

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7 0
3 years ago
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Step-by-step explanation:

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