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2 years ago

7

On a standardized exam, the scores are normally distributed with a mean of 300 land a standard deviation of 20. Find the z-score

of a person who scored 322 on the exam.

1 answer:

Liula [17]2 years ago

6 0

Answer:

82?

Step-by-step explanation:

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Factorise the following completely 3ax+2ay+6bx+4by

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Answer:

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Step-by-step explanation:

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Two Aps have the same first and last terms .The first Ap has 21 terms with a common difference of nine how many terms has the ot

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Step-by-step explanation:

a₁=b, a₂₁= bₙ, d₁=9, d₂=4

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---------------

a₂₁= a₁+20d₁= a₁+20*9= a₁+180

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