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3 years ago

Plz help me I am timed plz plus I am bad at math

Mathematics

2 answers:

PSYCHO15rus [73]3 years ago

8 0

Answer:

its a

Step-by-step explanation:

because as they said per hour is equally to 45 so the 2 hour will be 45 +45 which is 90 so its a

Rudiy273 years ago

5 0

It would be A
Explaination:Trust me I’m smart

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Answer:

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Step-by-step explanation:

We are given the following information in the question:

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Standard Deviation, σ = 2.2

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b) We have to find the value of x such that the probability is 0.62

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$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.62$

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

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$P( X < x) = P( z < \displaystyle\frac{x - 5.9}{2.2})=0.25$

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

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$\displaystyle\frac{x - 5.9}{2.2} = -0.674\\x = 4.4172 \approx 4.4$

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