To estimate the number of red cars on the road in Britain, we can use proportions based on Ben's findings. The estimated number is 9,450,000.
To estimate the number of red cars on the road, we can use the proportion of red cars in Ben's sample to the total number of cars in Britain.
In Ben's sample of 100 cars, 27 were red. We can set up a proportion:
27 / 100 = x / 35,000,000
Cross multiplying, we get:
x = 27 * 35,000,000 / 100 = 9,450,000
Therefore, we can estimate that there are approximately 9,450,000 red cars on the road in Britain.
The probable question may be:
Ben sat outside his school in Cambridge and made a note of the colour of the first 100 cars that passed.
27 of the cars were red.
In Britain there are around 35 million cars on the road.
Use Ben's findings to give an estimate of how many cars on the road are red.