Math worksheet for practicing mean, median, mode, and range calculations.

Let’s go through each set of numbers and calculate the mean, median, mode, and range step by step.

---

Set a: 3, 4, 9, 7, 7

- Mean: Add all numbers → 3 + 4 + 9 + 7 + 7 = 30. Divide by how many numbers (5) → 30 ÷ 5 = 6
- Median: Put in order → 3, 4, 7, 7, 9. Middle number is 7
- Mode: Most frequent number → 7 appears twice, others once → 7
- Range: Largest minus smallest → 9 - 3 = 6

✔ Check: All good.

---

Set b: 15, 3, 3

- Mean: 15 + 3 + 3 = 21. Divided by 3 → 21 ÷ 3 = 7
- Median: Order → 3, 3, 15. Middle is 3
- Mode: 3 appears twice → 3
- Range: 15 - 3 = 12

✔ Check: Correct.

---

Set c: 3, 0, 0, 2, 0

- Mean: 3 + 0 + 0 + 2 + 0 = 5. Divided by 5 → 5 ÷ 5 = 1
- Median: Order → 0, 0, 0, 2, 3. Middle is 0
- Mode: 0 appears three times → 0
- Range: 3 - 0 = 3

✔ Check: Good.

---

Set d: 5, 6, 5, 2, 4, 5, 1

First, order them: 1, 2, 4, 5, 5, 5, 6

- Mean: 1+2+4+5+5+5+6 = 28. Divided by 7 → 28 ÷ 7 = 4
- Median: Middle of 7 numbers → 4th number → 5
- Mode: 5 appears three times → 5
- Range: 6 - 1 = 5

✔ Check: All correct.

---

Set e: 10, 6, 3, 10, 1

Order: 1, 3, 6, 10, 10

- Mean: 1+3+6+10+10 = 30. Divided by 5 → 30 ÷ 5 = 6
- Median: Middle number → 6
- Mode: 10 appears twice → 10
- Range: 10 - 1 = 9

✔ Check: Correct.

---

Set f: 4, 6, 2, 6, 9, 3, 5

Order: 2, 3, 4, 5, 6, 6, 9

- Mean: 2+3+4+5+6+6+9 = 35. Divided by 7 → 35 ÷ 7 = 5
- Median: Middle of 7 numbers → 4th → 5
- Mode: 6 appears twice → 6
- Range: 9 - 2 = 7

✔ Check: All right.

---

Final Answer:
a. mean: 6, median: 7, mode: 7, range: 6
b. mean: 7, median: 3, mode: 3, range: 12
c. mean: 1, median: 0, mode: 0, range: 3
d. mean: 4, median: 5, mode: 5, range: 5
e. mean: 6, median: 6, mode: 10, range: 9
f. mean: 5, median: 5, mode: 6, range: 7