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Median Cookies

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Median Cookies


1. The problem asks to find the median number of cookies made by 21 people based on the frequency table. 2. The frequency table is: | Number of cookies made | Frequency | |-----------------------|-----------| | 10 | 1 | | 11 | 7 | | 12 | 2 | | 13 | 5 | | 14 | 4 | | 15 | 2 | 3. The total number of people is 21, which is odd, so the median is the value at position $\frac{21+1}{2} = 11$ in the ordered data. 4. To find the 11th value, list the cumulative frequencies: - Up to 10: 1 person - Up to 11: 1 + 7 = 8 people - Up to 12: 8 + 2 = 10 people - Up to 13: 10 + 5 = 15 people 5. The 11th person falls in the group with 13 cookies because cumulative frequency reaches 15 at 13. 6. Therefore, the median number of cookies made is $\boxed{13}$.