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NISA [10]
3 years ago
15

Kathy distributes jelly beans among her friends. Alia gets 4^2 fewer jelly beans than Kelly, who gets 3^3 jelly beans. How many

jelly beans does Alia get? A. 4^2 ? 3^3 B. 3^3 + 4^2 C. 4 ? 3^3 D. 3^3 ? 4^2 E. 3^2 ? 4^3
Mathematics
2 answers:
DochEvi [55]3 years ago
6 0

"Alia gets 4^2 fewer than Kelly, who gets 3^3."

So it's about a subtraction.

\boxed{3^3-4^2}

Hope this helps.

r3t40

exis [7]3 years ago
3 0

Answer:

  D. 3^3 - 4^2

Step-by-step explanation:

4^2 fewer than 3^3 is ...

  3^3 - 4^2 . . . . . matches choice D

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Step-by-step explanation:

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The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

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Let X the random variable of interest, on this case we now that:

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The probability mass function for the Binomial distribution is given as:

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And we want to find this probability:

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P(X=9)=(15C9)(0.8)^{9} (1-0.8)^{15-9}=0.0429

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P(8 < x \leq 12)=0.0429+0.1032+0.1878 +0.2501=0.5839

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