Page 8 - Averages

5 The makes of cars in a supermarket car park were noted one day as:
Ford, Peugeot, Nissan, Honda, Ford, Nissan, Peugeot, Ford, Peugeot, Nissan,
Ford,
Toyota, Honda, Honda, Peugeot, Ford, Honda, Nissan, Honda, Peugeot, Toyota,
Toyota,

Toyota, Nissan, Toyota.

What is the problem with finding the modal make of car in this car park at this time?

6 Here is a large set of data.
5 7 1 3 7 8 7 9 2 3 1 6 1 3 5 6 4 2 7 8 9 2 9 4 5 1 4 6 8 3 9 3 2 2 4 5 7
5 8 7 3 7 8 2 3 5 6 6 3 4 3 1 2 3 5 6 5 4 4

a Explain a method for finding the mode efficiently and accurately.

7