Data Collection

9 Grade 4 Mathematics questions on Data Collection, with worked marking schemes. 9 questions are available on this topic in full.

1. Question 1

   1 mark

   A bar chart shows favourite fruits: Mango=15, Banana=10, Orange=20, Apple=5. Which is most popular?

   A. Banana

   B. Apple

   C. Mango

   D. Orange

   (1 mark)

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2. Question 2

   1 mark

   A tally shows IIII IIII II. How many tallies is that?

   A. 10

   B. 11

   C. 13

   D. 12

   (1 mark)

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3. Question 3

   1 mark

   In a class of 40 pupils, 15 like football. What fraction like football?

   A. $\frac{3}{5}$

   B. $\frac{2}{5}$

   C. $\frac{1}{4}$

   D. $\frac{3}{8}$

   (1 mark)

   Marking scheme

   D. $\frac{3}{8}$ — write the part over the whole and simplify: $\frac{15}{40}$, dividing both by $5$, gives $\frac{3}{8}$. B and A are not equal to $\frac{15}{40}$.

4. Question 4

   1 mark

   Data: 5, 8, 12, 6, 9. Find the range.

   A. 7

   B. 12

   C. 5

   D. 8

   (1 mark)

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5. Question 5

   1 mark

   Which is the best way to record and count data quickly?

   A. Bar chart

   B. Tally marks

   C. Pie chart

   D. Written list

   (1 mark)

   Marking scheme

   B. Tally marks — tallies are made while counting, one stroke at a time. The charts are ways of showing data after it has been collected, not of recording it.

6. Question 6

   1 mark

   A bar graph of fruits sold at a shop shows: mangoes $12$, oranges $8$ and bananas $15$. How many fruits were sold altogether?

   A. $35$

   B. $40$

   C. $30$

   D. $25$

   (1 mark)

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7. Question 7

   1 mark

   Find the mode of: 3, 5, 7, 5, 2, 5, 8.

   A. 5

   B. 7

   C. 3

   D. 8

   (1 mark)

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8. Question 8

   1 mark

   Find the mean of: 10, 20, 30, 40, 50.

   A. 25

   B. 40

   C. 35

   D. 30

   (1 mark)

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9. Question 9

   1 mark

   A pictograph uses 1 symbol = 5 pupils. If Class A has 4 symbols, how many pupils?

   A. 25

   B. 10

   C. 4

   D. 20

   (1 mark)

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