Athletics Team

1.1 A quality audit of a bottling company showed the number of defective batches outside of the specification limits for a particular oil product. The grouped data shown in the table below indicates the number of defective items per unit of measurement.

1.1.1 Complete the table data under the given columns.     (5)

1.1.2 Calculate the mean value.     (5)

1.1.3 Draw the cumulative frequency polygon and then use your graph to determine the median.     (5)

1.1.4 Use the values from 3.1.2 and 3.1.3 to comment on the nature of the distribution. Give a reason for your answer     (5)

In a class of 20 children, 4 of the 9 boys and 3 of the 11 girls are in the athletics team. A person from the class is chosen to be in the ‘egg and spoon ‘race on sport Day. Find the probability that the person chosen is

1.1 in the athletics     (5)

1.2 female     (5)

1.3 a female member of the athletics team     (5)

1.4 Between 4500 and 4 900 oranges     (5)