Question

The following table summarizes the results of a poll taken of CEO’s and analysts concerning the...

The following table summarizes the results of a poll taken of CEO’s and analysts concerning the economic impact of a pending piece of legislation:

Votes for Positive Impact

CEOS: 40

Analyst: 70

Total: 110

Votes for Negative Impact

CEOS: 30

Analyst: 60

Total: 90

What is the probability that a randomly selected analyst votes that the legislation will have a positive impact on the economy? What is the probability that a randomly selected individual who votes that the legislation will have a negative impact on the economy will be a CEO?

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Answer #1
Positive Impact Negative impact Total
CEO 40 30 70
Analyst 70 60 130
Total 110 90 200

What is the probability that a randomly selected analyst votes that the legislation will have a positive impact on the economy?

Probability =

Probability of positive impact =

= 110 / 200

Probability having positive impact =

What is the probability that a randomly selected individual who votes that the legislation will have a negative impact on the economy will be a CEO?

We want to know that out of people who have a negative impact the selected individual is a CEO, this is because they have mentioned that individual has voted for negative impact and then we want to know proportion of CEO out of it.

Probability =

= 30 / 90

Probability =

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