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2 years ago

8

the penguin nursery is open two times a day 2/3 hour at noon and 5/12 hour in the afternoon.How much time is the penguin nursery

open every day?

1 answer:

KonstantinChe [14]2 years ago

7 0

2/3x4/4= 8/12
8/12+5/12=13/12
=1 1/12 hours

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Step-by-step explanation:

Given that

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3 years ago

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Step-by-step explanation:

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3 years ago

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3 years ago

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andreyandreev [35.5K]

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Step-by-step explanation:

A sequence of Bernoulli trials forms the binomial probability distribution.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

And p is the probability of X happening.

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Five trials means that $n = 5$

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3 years ago