2 years ago

I need the answer for p

Mathematics

1 answer:

Lesechka [4]2 years ago

7 0

Answer:

D, a = 13

Step-by-step explanation:

A is larger than 12 and the only number bigger than 12 on that paper is 13.

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In the expression 5 × y/7 what value of y would make a product greater than 5?

ss7ja [257]

Answer:

any value of y >= 8

Step-by-step explanation:

8 0

1 year ago

Pls help me im not that smart !!

scoray [572]

<h3>Answer: 10.7</h3>

Work Shown:

5 times 2 = 10

5 times 13 = 65

5 times 2.13 = 10.65

This rounds to <u>10.7</u> when rounding to the nearest tenth, i.e. one decimal place.

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1 year ago

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Luden [163]

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2 years ago

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Inga [223]

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3 years ago

Test scores are normally distributed with a mean of 500. Convert the given score to a z-score, using the given standard deviatio

Bond [772]

Answer:

The percentage of students who scored below 620 is 93.32%.

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 question, we have that:

$\mu = 500, \sigma = 80$