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siniylev [52]
3 years ago
6

Larisa buys 5 hats at 9.99 each how much does she spend

Mathematics
1 answer:
Kisachek [45]3 years ago
7 0
Larisa will spend $49.99

5 x 9.99 = $49.99
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A company surveyed 2,600 North American airline passengers and reported that approximately 75% said that they carry a smartphone
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The probability that exactly six out of ten carry a smartphone when travelling is; <u><em>P(6) = 0.146</em></u>

The missing part of the question is;

The probability distribution of x is the binomial distribution with n = 10 and p = 0.75.

Calculate P(6)

  • This is a binomial <em>probability distribution</em> problem that has a general formula as; P(x) = ⁿCₓ × pˣ × q⁽ⁿ ⁻ ˣ⁾

Where;

p is probability of success

q is probability of failure

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In this question;

n = 10

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q = 1 - p

q = 1 - 0.75

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Since six passengers are randomly selected, then applying the formula earlier quoted, we have;

P(6) = ¹⁰C₆ × 0.75⁶ × 0.25⁽¹⁰ ⁻ ⁶⁾

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Read more at; brainly.com/question/24239758

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