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3 years ago

(18)-(4-2)x 2 Plz help

Mathematics

2 answers:

Ksenya-84 [330]3 years ago

8 0

Answer:

-14

Step-by-step explanation:

Subtract from 2 and 4

multiply $2^{4}$ by 2

Raise 2 to the power of 5

Multiply -2 from 32

Verdich [7]3 years ago

5 0

Answer:

so first u do (4-2) which is 2

then minus 18 from 2 which is 16

then u multiply by 2 which is 32

therefore the answer is 32

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Pachacha [2.7K]

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3 years ago

A normal distribution has a mean of 137 and a standard deviation of 7. Find the z-score for a data value of 121. Incorrect Round

Neko [114]

Answer:

The z-score for a data value of 121 is -2.29.

Step-by-step explanation:

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

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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:

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Find the z-score for a data value of 121.

This is Z when X = 121. So

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$Z = \frac{121 - 137}{7}$

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4 0

3 years ago

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Eduardwww [97]

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3 years ago