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vredina [299]
2 years ago
11

Please help me this is my test I'm stuck on this one

Mathematics
1 answer:
Tema [17]2 years ago
8 0
Ok pretty sure the probability of a 5 is 1/5

The probability of a # greater than 3 is 2/5

And the probability of a 2 or 5 is 2/5

(1/5 is 20% and 2/5 is 40% if you need those)
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A certain bacteria culture grows at a rate if 18% everday. There are currently 420 bacteria. How many bacteria will there be on
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Answer:

1579

Step-by-step explanation:

There is a particular formula you must use and it leads to this 420(1 + 0.18)^8=1579

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A human resource manager wants to see if there is a difference in the proportion of minority applicants who get the job and the
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Answer:

Error Bound = 0.04

Step-by-step explanation:

Whenever we want to estimate parameter from a subset (or sample) of the population, we need to considerate that your estimation won't be a 100% precise, in other words, the process will have a random component that prevents us from always making the exact decision.

With that in mind, the objective of a confidence interval is to give us a better insight of where we expect to find the "true" value of the parameter with a certain degree of certainty.

The estivamative of the true difference between proportions was -0.19 and the confidence interval was [-0.23 ; -0.15].

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The interpretation of this would be that we expect that the estimative for the difference of proportions would deviate from the "true" difference about \pm 0.04 or 4%.

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