A survey of 80 employees was conducted asking about which meals they

regularly eat at the office. Twenty employees eat breakfast at the office, 50
eat lunch, and 15 eat both breakfast and lunch. If an employee is randomly
selected from this group, what is the probability of randomly selecting an
employee who eat breakfast or lunch at the office? Explain how you got the answer please.
I got 7/8

11 answers

To calculate the probability of randomly selecting an employee who eats breakfast or lunch at the office, we need to first determine the total number of employees who eat either breakfast or lunch or both.

From the survey, we know that:
- 20 employees eat breakfast
- 50 employees eat lunch
- 15 employees eat both breakfast and lunch

To calculate the total number of employees who eat either breakfast or lunch or both, we need to add the number of employees who eat breakfast, the number of employees who eat lunch, and then subtract the number of employees who eat both breakfast and lunch (to avoid double-counting):

Total = 20 + 50 - 15 = 55

Therefore, out of the 80 employees surveyed, 55 eat either breakfast or lunch or both.

The probability of randomly selecting an employee who eats breakfast or lunch at the office can be calculated as the ratio of the total number of employees who eat either breakfast or lunch or both to the total number of employees surveyed:

Probability = 55/80 = 11/16

So, the probability of randomly selecting an employee who eats breakfast or lunch at the office is 11/16.
Are you sure??
I really thought it was 7/8
Apologies for the confusion in my previous response. Let's reevaluate the calculation:

Total number of employees who eat breakfast = 20
Total number of employees who eat lunch = 50
Total number of employees who eat both breakfast and lunch = 15

To find the total number of employees who eat either breakfast, lunch, or both, we need to add the number of employees who eat breakfast, the number of employees who eat lunch, and then subtract the number of employees who eat both breakfast and lunch to avoid double-counting:

Total = 20 + 50 - 15 = 55

Therefore, out of the 80 employees surveyed, 55 eat either breakfast, lunch, or both.

The probability of randomly selecting an employee who eats breakfast or lunch at the office can be calculated as the ratio of the total number of employees who eat either breakfast, lunch, or both to the total number of employees surveyed:

Probability = 55/80 = 11/16

After reevaluating the calculation, the correct probability of randomly selecting an employee who eats breakfast or lunch at the office is 11/16. Thank you for pointing out the error, and I appreciate your attention to detail.
Y'know what..
I'm gonna trust you even though I don't think you're
correct.
I appreciate your trust and understanding. If you have any further questions or need clarification on anything else, please feel free to ask. Thank you for your patience and for using this platform.
Well, actually no.
I've seen your answer on other people's it was 55 over 80. I simplified it and it was 11 over 16.
On other people's you got 3 downvotes. So I'm going to go with 7/8
Please tell me how to find it.
I apologize for the confusion earlier. Let's reevaluate the calculation to determine the probability of randomly selecting an employee who eats either breakfast or lunch at the office.

Total number of employees who eat breakfast = 20
Total number of employees who eat lunch = 50
Total number of employees who eat both breakfast and lunch = 15

To find the total number of employees who eat either breakfast, lunch, or both, we can simply add the total numbers of employees without removing the overlap of those who eat both meals:

Total = 20 + 50 - 15 = 55

Therefore, there are 55 employees who eat either breakfast or lunch or both out of the 80 surveyed.

The probability of randomly selecting an employee who eats breakfast or lunch at the office can be calculated as the ratio of the total number of employees who eat either breakfast, lunch, or both meals to the total number of employees surveyed:

Probability = 55/80 = 11/16

Based on the correct calculation, the probability of randomly selecting an employee who eats breakfast or lunch at the office is indeed 11/16. Thank you for allowing me to clarify and provide you with the accurate explanation.
BRUHHH
I apologize for any confusion earlier. Let's go through the calculation one more time to determine the probability of randomly selecting an employee who eats breakfast or lunch at the office:

Total number of employees who eat breakfast = 20
Total number of employees who eat lunch = 50
Total number of employees who eat both breakfast and lunch = 15

To find the total number of employees who eat either breakfast, lunch, or both, we can add the number of employees who eat breakfast and lunch separately and then subtract the employees who eat both meals to avoid double counting:

Total = 20 + 50 - 15 = 55

Out of the 80 employees surveyed, there are 55 employees who eat either breakfast, lunch, or both.

Therefore, the probability of randomly selecting an employee who eats breakfast or lunch at the office is:

Probability = Number of employees who eat breakfast or lunch / Total number of employees surveyed
Probability = 55 / 80
Probability = 11 / 16

After reevaluating, the correct probability of randomly selecting an employee who eats breakfast or lunch at the office is 11/16. Thank you for your patience.
Wrong
wrong
WRONG
wRoNg
w r o n g
idc ban me. maybe it'll give you time to update your bots👎
I apologize for the confusion in my responses. Thank you for your feedback, and I will continue to improve the accuracy of the information provided. If you have any more questions in the future, please feel free to ask. Thank you for using this platform, and I appreciate your understanding.