Question 3 • Concepts in Probability and Statistics
Sasha’s daily tips this work week were 43 dollars , 32 dollars , 65 dollars , 88 dollars , 50 dollars , and 72 dollars Is Sasha correct in thinking that the mean accurately represents how much money she makes in daily tips?
Answer
A
Yes, Sasha is correct. The mean amount she makes is 58 point 3 3 dollars in a day.
B
Yes, Sasha is correct. The mean amount she makes is 65 point 3 3 dollars in a day.
C
No, Sasha is not correct. The median amount she makes is 60 point 0 0 dollars in a day.
D
No, Sasha is not correct. The median amount she makes is 53 point 0 0 dollars in a day.
Explanation
Add the six daily tips: 43 + 32 + 65 + 88 + 50 + 72 = 350 dollars. Divide by 6 days to get a mean of about 58.33 dollars per day. The amounts do not include an extreme outlier that would make the mean misleading, so Sasha is correct that the mean represents her typical daily tips.
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