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題目

解題步驟

1. Understand the question

   find the mean of the ending balance in teresas account for the week.
   daily ending balance
   1: $320
   2: $206
   3: $245
   4: -$2
   5: -$2
   6: $18
   7: $20
   total: $805
   mean (average) = \\(\frac{805}{7}\\)

2. Explanation

   Step1: Identify total and count

   Total balance = $\$805$, Number of days = $7$

   Step2: Calculate the mean

   Mean = $\frac{\text{Total balance}}{\text{Number of days}} = \frac{805}{7}$

3. Final answer

   $\$115$

答案

Question Analysis

OCR Text

find the mean of the ending balance in teresas account for the week.
daily ending balance
1: $320
2: $206
3: $245
4: -$2
5: -$2
6: $18
7: $20
total: $805
mean (average) = \\(\frac{805}{7}\\)

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