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zhenek [66]
3 years ago
12

there were 420 birds migrating to the south in the sky this morning. If the ratio of Godwits to Geese in the sky this morning wa

s 20:40, how many more Geese were there than Godwits in the sky?
Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
7 0
First, add 20 and 40. that gives you 60. then, you divide- 420/60. that gives you 7. then multiply 7 by 20, giving you 140, and multiply 7 by 40, giving you 280. then subtract: 280-140


answer: 140
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Assume that when Human Resource managers are randomly selected, 62% say job applicants should follow up within two weeks. If 25
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Using the binomial distribution, it is found that there is a 38% probability that exactly 18 of them say job applicants should follow up within two weeks.

<h3>How to find that a given condition can be modelled by binomial distribution?</h3>

Binomial distributions consists of n independent Bernoulli trials.

Bernoulli trials are those trials that end up randomly either on success (with probability p) or on failures( with probability 1- p = q (say))

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Binomial probability distribution  

P(X =x) = \: ^nC_xp^x(1-p)^{n-x}

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In this problem:

62% say job applicants should follow up within two weeks, p = 0.62

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Learn more about binomial distribution here:

brainly.com/question/13609688

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