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Genrish500 [490]
1 year ago
8

THIS QUESTION IS GOING TO SAVE MY LIFE:

Mathematics
2 answers:
mel-nik [20]1 year ago
8 0

Answer:

Step-by-step explanation:

(1) The ratio 24.8 to 13.4 can be rewritten as 24 8/10 or 248/10 to 13 4/10, or, after simplification, 248/10 to 134/10.  This version of the given ratio reduces to 248/134, or 124/67.  This last version cannot be reduced further.

(2) The ratio 1.5 to 4.5 is equivalent to 3(.5) / 3(1.5), or 1/3.

OleMash [197]1 year ago
8 0
1) 124/67.

2/1/3.

Good luck !! Hope it helps!
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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
Alenkinab [10]

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))

The probability that out of n trials, there'd be x successes is given by

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

Binomial probability distribution  

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

The parameters are:

n is the number of trials.

x is the number of successes.

p is the probability of success on a single trial.

In this problem:

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

25 managers are selected, n = 25

The probability that exactly 18 of them say job applicants should follow up within two weeks is P ( X = 18)

P( X > 18) = 1 -  ( X = 18)

= 1 - 0.62

= 0.38

38 % probability that exactly 18 of them say job applicants should follow up within two weeks.

Learn more about binomial distribution here:

brainly.com/question/13609688

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8 0
1 year ago
Ms. Watson's age is 5 years more than 2 1/2 times her son's age. She is 55 years old. How old is her son, in years?
valina [46]

Answer:

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hope this helps :)

4 0
3 years ago
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