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3 years ago

Hector recorded the amount of time he spent running for 3 days what is the total number of hours hector spent running

Mathematics

2 answers:

Maslowich3 years ago

7 0

How much did he run for each of those days?

lozanna [386]3 years ago

5 0

Well you have to go by 24x3 and that equals 72 miles

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Answer:

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) Thirty percent of the students in a management class are graduate students. A random sample of 3 students is selected. a) Usin

adell [148]

Given Information:

Probability of success = 30%

Sample size = n = 3

Variable of interest = x = 2

Required Information:

Probability of exactly 2 graduates = ?

Answer:

Probability of exactly 2 graduates = P(2; 3, 0.30) = 0.189

Step-by-step explanation:

The given problem can be modeled as a binomial experiment since a random selected student can either b graduate or not therefore, there are only 2 outcomes. Each trial is independent and the probability of success is not changing from trial to trial. The number of trials in also fixed.

We know that a binomial distribution is given by

P(x; n, p) = nCx pˣ (1 - p)ⁿ⁻ˣ

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For the given problem, we know that x = 2, n = 3 and p = 0.30

P(2; 3, 0.30) = 3C2*0.30²*(1 - 0.30)³⁻²

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