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SCORPION-xisa [38]
3 years ago
9

Samantha ate 3/5 of the pumpkin pie Sean ate 2/10 of the pie how much did they leave for Richard

Mathematics
1 answer:
gavmur [86]3 years ago
4 0

If you simplify 2/10 to get 1/5 then you can add the two together to get 4/5, so that would leave 1/5 for richard

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A factory makes car batteries. The probability that a battery is defective is 1/14. If 400 batteries are tested, about how many
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Answer:

28.6, that is, about 29 are expected to be defective

Step-by-step explanation:

For each battery, there are only two possible outcomes. Either it is defective, or it is not. The probability of a battery being defective is independent of other betteries. So the binomial probability distribution is used to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

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