(8x10^-3)+(2 x 10^-4)

Mathematics

1 answer:

kvasek [131]2 years ago

8 0

Answer:

0.0082

Step-by-step explanation:

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The difference between 3 1/2 and 1 4/5 a 2 4/5 b 2 7/10 c 1 4/5 d 1 7/10

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Answer:

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Step-by-step explanation:

Problems of normally distributed samples are 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:

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

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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 14$