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Probabilities(Want to check if my answers are correct)

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Intern
Joined: 14 Jan 2018
Posts: 1

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14 Jan 2018, 05:55
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In the Table below the sales of a product (excluding returns) and the returns of that product, per salesperson can be found.
Name |Sales (excluding returns) | Returns
Kostas | 80| 10
Christos | 24 | 9
Maria | 32 | 6
Christina| 58| 16

On the basis of the above table, answer the following:
i. What is the probability of each salesman having returns on each sale?
ii. If we randomly select a sale, what is the probability this was made by Maria?
iii. If we randomly select a return, what is the probability that this was from a product sold by Maria?
iv. What is the probability that a product was sold by Maria and it was returned?
v. Given that a sale was made by Maria what is probability that the product is returned?

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Math Expert
Joined: 02 Sep 2009
Posts: 53795

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14 Jan 2018, 08:51
Playermath wrote:
In the Table below the sales of a product (excluding returns) and the returns of that product, per salesperson can be found.
Name |Sales (excluding returns) | Returns
Kostas | 80| 10
Christos | 24 | 9
Maria | 32 | 6
Christina| 58| 16

On the basis of the above table, answer the following:
i. What is the probability of each salesman having returns on each sale?
ii. If we randomly select a sale, what is the probability this was made by Maria?
iii. If we randomly select a return, what is the probability that this was from a product sold by Maria?
iv. What is the probability that a product was sold by Maria and it was returned?
v. Given that a sale was made by Maria what is probability that the product is returned?

--== Message from the GMAT Club Team ==--

THERE IS LIKELY A BETTER DISCUSSION OF THIS EXACT QUESTION.
This discussion does not meet community quality standards. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.

_________________
Re: Probabilities(Want to check if my answers are correct)   [#permalink] 14 Jan 2018, 08:51
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