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BabaBlast [244]
3 years ago
11

2. What is the median of this set of values? (1 point) 6, 8, 10, 8, 4, 2, 12

Mathematics
2 answers:
vredina [299]3 years ago
8 0

Answer:8

Step-by-step explanation:

Right is the middle number when put in order form least to greastes

s2008m [1.1K]3 years ago
4 0
4 is the answer 12 2 10 8 8 6 all that’s left if 4
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Answer:

x =417.6

Step-by-step explanation:

0.5x+78.2=287

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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}

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In this problem, we have that:

\mu = 100, \sigma = 15

If one person is randomly selected what is the probability that the persons IQ is between 110 and 130

This is the pvalue of Z when X = 130 subtracted by the pvalue of Z when X = 110.

X = 130

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

Z = \frac{110 - 100}{15}

Z = 0.67

Z = 0.67 has a pvalue of 0.7486

0.9772 - 0.7486 = 0.2286

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

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