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3 years ago

The answer is 16, I am just not sure how to arrive at that answer.

Mathematics

1 answer:

Serjik [45]3 years ago

7 0

Step-by-step explanation:

∑ (4ⁿ⁺¹ / 5ⁿ)

Rewrite 4ⁿ⁺¹ as 4 (4ⁿ).

∑ 4 (4ⁿ / 5ⁿ)

∑ 4 (4/5)ⁿ

This is a geometric series. The sum of an infinite geometric series is:

S = a / (1 −r)

where a is the first term and r is the common ratio.

Here, the first term is 16/5 (because n starts at 1), and the common ratio is 4/5.

S = 16/5 / (1−4/5)

S = 16/5 / (1/5)

S = 16

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Answer:

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Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 30

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Let 'X' be the Normal distribution

Step(ii):-

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= 0.5 - A(3.5)

= 0.5 - 0.4990

= 0.001

P(X>26) = 0.001

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