Question

Jack and Isaac are both collecting data about the colours of cars passing their homes. Jack does this by filling in the table below. Isaac writes down the colour of each car in turn.

Select all of the advantages of Jack's method from the list below.
- Colour of car : Red, Tally_______
- Colour of car : Blue, Tally_______
- Colour of car : Grey, Tally_______
- Colour of car : Black, Tally_______
- Colour of car : Other, Tally_______
1. Every colour is recorded
2. Drawing a tally is quicker than writing down each colour
3. The order of the passing cars is recorded
4. It is easier to work out the number of cars of each colour

Answer 1

The advantages of Jack's method are:

1. Every colour is recorded

2. Drawing a tally is quicker than writing down each colour

4. It is easier to work out the number of cars of each colour

How to explain

1. Every colour is recorded: This is true because Jack has a separate tally for each colour, including "Other", ensuring no cars are missed.

2. Drawing a tally is quicker than writing down each colour: Tallying is a faster way to record data than writing out the entire colour name each time.

4. It is easier to work out the number of cars of each colour: Counting the tallies for each colour is a simpler and faster way to determine the frequency of each colour than counting individual written entries.

Therefore, the correct options are 1, 2, and 4.