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Sever21 [200]
3 years ago
9

8x + 9y - (2x +y) when x=4 and y=6

Mathematics
1 answer:
djyliett [7]3 years ago
7 0
8(4)+9(6)-(2(4)+6)
32+54-(8+6)
86-14
72
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Answer:

Step-by-step explanation:

We would apply the formula for binomial distribution. It is expressed as

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From the information given,

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1)The probability that none fails is

P(x = 0) = 8C0 × 0.9^(8 - 0) × 0.1^0

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3) The probability that four fails is

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P(x = 4) = 0.0046

3) The probability that six fails is

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P(x = 6) = 0.00002268

4) The probability that eight fails is

P(x = 8) = 8C8 × 0.1^(8 - 8) × 0.1^8

P(x = 8) = 0.00000001

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