Pre-Calc Help:

Mathematics

1 answer:

jasenka [17]3 years ago

6 0

The answer is 8 because you have 3 /4

You might be interested in

98-12+e <br> =106<br> Need help quick

Serjik [45]

Answer:

$98 - 12 + e = 106 \\ 86 + e = 106 \\ e = 10 6 - 86 \\ e = 20$

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜ.

6 0

3 years ago

Ill mark u brainliest if u answer pls answer fast& its worth 49 points:

defon

B a gf svvhghhfhhfjgh

4 0

2 years ago

IQ scores are normally normally distributed with a mean of 100 and center deviation of 15 if one person is randomly selected wha

Arlecino [84]

Answer:

22.86% probability that the persons IQ is between 110 and 130

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:

$\mu = 100, \sigma = 15$