Everything Maths Grade 10

6.A group of 20 learners count the number of stones they each have. The learners draw a histogram
describing the data they collected. However, they have made a mistake in drawing the histogram.

1

2

3

4

5

0-3

A

4-7

B

8-11

C

12-15

D

16-19

E

number of stones

y

The data set below shows the correct information for the number of stones the learners have. Each value

represents the number of stones for one learner.

f19; 11; 5; 2; 3; 4; 14; 2; 12; 19; 11; 14; 2; 19; 11; 5; 17; 10; 1; 12g

Help them figure out whichcolumnin the histogram isincorrect.

7.A group of learners count the number of sweets they each have. This is a histogram describing the data

they collected:

1

2

3

4

5

0-3 4-7 8-11 12-1516-20

number of sweets

y

A cat jumps onto the table, and all their notes land on the floor, mixed up, by accident!

Help them find which of the following data sets match the above histogram:

Data Set A

2 1 20 10 5 3 10 2 6 1

2 2 17 3 18 3 7 10 8 18

Data Set B

2 9 12 10 5 9 9 10

13 6 5 11 10 7 7

Data Set C

3 12 16 10 15 17 18 2 3 7

11 12 8 2 7 17 3 11 4 4

368 10.3. Grouping data