I need some help with this please

Mathematics

1 answer:

ki77a [65]3 years ago

6 0

Good evening ,

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Step-by-step explanation:

Look at the photo below for the answer.

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How to do this question c. I know how to do b and a 6,0,3,2,2,5 that they scored

rodikova [14]

Answer:

I’m pretty sure you have to multiply the 4 because that’s how many points you get per Galo and multiply by 7 because it was the seventh game so 28.

Step-by-step explanation:

5 0

3 years ago

Find the indicated IQ score. The graph depicts IQ scores of adults, and those scores are normally distributed with a mean of 100

Taya2010 [7]

Answer:

IQ score of 102.55

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:

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

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, which is also the shaded area under the curve, 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:

$\mu = 100, \sigma = 15$