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3 years ago

Please help asap!! 35 points!!!!!

Mathematics

2 answers:

shutvik [7]3 years ago

5 0

I don't think it is linear b/c i don't think you can plug in the numbers and get it to work. This may not be right though b/c I did this in my head.

frosja888 [35]3 years ago

5 0

No, the relationship is not Linear as you can tell here

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Step-by-step explanation:

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4 years ago

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nadezda [96]

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<u>-TheUnknownScientist</u><u> 72</u>

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3 years ago

Assume that adults have IQ scores that are normally distributed with a mean of 100 and a standard deviation of 15 (as on the Wec

mash [69]

Answer:

0.018 is the probability that a randomly selected adult has an IQ greater than 131.5

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100

Standard Deviation, σ = 15

We are given that the distribution of IQ score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

a) P(IQ greater than 131.5)

P(x > 131.5)

$P( x > 131.5) = P( z > \displaystyle\frac{131.5 - 100}{15}) = P(z > 2.1)$

$= 1 - P(z \leq 2.1)$

Calculation the value from standard normal z table, we have,

$P(x > 131.5) = 1 - 0.982 = 0.018 = 1.8\%$

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3 years ago