Hair colour quiz: Solution

Question 1

How many students' hair colour is recorded?

Solution:

  1. 20
  2. 30
  3. 40
  4. 50

Answer:

3. 40

Feedback:
  1. Add together the total number of boys and the total number of girls shown in the data.
  2. Add together the total number of boys and the total number of girls shown in the data.
  3. Well done!
  4. Add together the total number of boys and the total number of girls shown in the data.

Question 2

How many boys are included in the data?

Solution:

  1. 2
  2. 4
  3. 10
  4. 20

Answer:

4. 20

Feedback:
  1. Add the column of data under the heading 'Boys'.
  2. Add the column of data under the heading 'Boys'.
  3. Add the column of data under the heading 'Boys'.
  4. Well done!

Question 3

How many girls have blonde hair?

Solution:

  1. 1
  2. 5
  3. 6
  4. 8

Answer:

3. 6

Feedback:
  1. Look across the horizontal row that has the label 'Blonde' and read the number that is in the 'Girl' column.
  2. Look across the horizontal row that has the label 'Blonde' and read the number that is in the 'Girl' column.
  3. Well done!
  4. Look across the horizontal row that has the label 'Blonde' and read the number that is in the 'Girl' column.

Question 4

Which hair colour do most boys in the school have?

Solution:

  1. Black
  2. Blonde
  3. Brown
  4. Red

Answer:

3. Brown

Feedback:
  1. Look down the 'Boys' column and find the highest number. Read the hair colour that is next to it.
  2. Look down the 'Boys' column and find the highest number. Read the hair colour that is next to it.
  3. Well done!
  4. Look down the 'Boys' column and find the highest number. Read the hair colour that is next to it.

Question 5

Rank the colour of everyone's hair from the least common to the most common.

Solution:

  1. Red, Black, Brown, Blonde
  2. Red, Black, Blonde, Brown
  3. Red, Blonde, Black, Brown
  4. Brown, Blonde, Black, Red

Answer:

2. Red, Black, Blonde, Brown

Feedback:
  1. Get the total for each colour by adding together the number of boys and girls with that colour. Mentally reorder the colours so the totals begin with the lowest number and end with the highest number.
  2. Well done!
  3. Get the total for each colour by adding together the number of boys and girls with that colour. Mentally reorder the colours so the totals begin with the lowest number and end with the highest number.
  4. The colours should be listed from the colour that the least number of students have to the one that is most common.

Question 6

How many students have red hair?

Solution:

  1. 1
  2. 2
  3. 3
  4. 4

Answer:

3. 3

Feedback:
  1. Add the boys with red hair together with the girls with red hair. The answer is the total.
  2. Add the boys with red hair together with the girls with red hair. The answer is the total.
  3. Well done!
  4. Add the boys with red hair together with the girls with red hair. The answer is the total.