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BitWithBite
Mathematics Worksheet

➗ Mean

Chapter: Statistics · Level ★★☆ · Time: 30 min
SCORE___ / 20
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After this worksheet you can
Compute the arithmetic mean.Understand how outliers affect the mean.Recognise the mean as total ÷ count.Use the symbol x-bar for the sample mean.

🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4

1The mean of 12, 18, 24, 30 is:
2The mean of 7, 14, 21, 28, 35 is:
3The mean of 3, 3, 3, 3 is:
4The symbol for the sample mean is:

🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11

5The mean is the divided by the count.
6The mean of 12, 18, 24, 30 is .
7Find the mean of 12, 18, 24, 30.
8Find the mean of 7, 14, 21, 28, 35.
9Find the mean of 3, 3, 3, 3.

🚀 Section C · Challenge ● CHALLENGE 5

10A dataset is 5, 10, 15, 20, 1000. Find the mean.
💭 Reflection — the most useful thing I learned:
A ___/4   B ___/11   C ___/5   Total ___/20 Teacher's Signature Parent's Signature
✂ answer key — fold or cut before handing out

1-A   2-A   3-A   4-B  |  5 sum   6 21   7 = 21   8 = 21   9 = 3  |  10 = 210

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