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3 years ago

What is g(3) please help

Mathematics

1 answer:

ioda3 years ago

7 0

Answer:

g(3) = 0

Step-by-step explanation:

g(3) → x = 3 , in interval x≥ 3 , thus g(3) = - x + 3, that is

g(3) = - 3 + 3 = 0

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saveliy_v [14]

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a)0.067

b)0.111

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Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $385

Standard Deviation, σ = $110

We are given that the distribution of domestic airfares is a bell shaped distribution that is a normal distribution.

Formula:

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c))P(domestic airfare is between $300 and $500)

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d) P(X=x) = 0.03

We have to find the value of x such that the probability is 0.03.

P(X > x)

$P( X > x) = P( z > \displaystyle\frac{x - 385}{110})=0.03$

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

$\displaystyle\frac{x - 385}{110} = 2.748\\x = 687.28$

Hence, the domestic fares must be $687.28 or greater for them to lie in the highest 3%.

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