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According to one study, 61% of the population swallow at least one spider per year in their sleep. based on this study, what is the probability that exactly 7 of 10 randomly selected people have swallowed at least one spider in their sleep in the last year. (1 point) 70% 22% 1% 34%

Respuesta :

Answer:

22%    :)

Explanation:

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The  probability that exactly 7 of 10 randomly selelcted people have swallowed at least one spider in their sleep in the last year is 22%.

Probability

Binomial Problem

Given:

Randomly selected (n) = 10

P(spider) = 0.61

Hence:

P(x = 7) = 10C7(0.61)^7 × (0.39)³

P(x = 7)= 0.22 ×100

P(x = 7)=22%

Therefore the  probability that exactly 7 of 10 randomly selelcted people have swallowed at least one spider in their sleep in the last year is 22%.

Learn more about probability here:https://brainly.com/question/24756209

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