
Over a -day period, data were collected on the number of passengers travelling on two ferries, and The results are presented to the right.
Key
Represents passengers on and passengers on
The cost of a trip on ferry is and the cost of a trip on ferry is The takings on ferry were less than the takings on ferry A over this period. Find the value of
Represents passengers on and passengers on
The cost of a trip on ferry is and the cost of a trip on ferry is The takings on ferry were less than the takings on ferry A over this period. Find the value of

Important Questions on Representation of Data
Over a -day period, data were collected on the number of passengers travelling on two ferries, and
Key
Represents passengers on and passengers on
Find the least and greatest possible number of days on which the two ferries could have carried exactly the same number of passengers.

Batsman
Batsman
Show the data in a diagram that allows easy comparison of the two performances.

Batsman
Batsman
Giving a reason for your answer, decide which of the batsmen performed better.

Batsman
Batsman
Giving a reason for your answer, decide which of the batsmen performed more consistently.

The numbers of eggs laid in the nests of wrens and dunnocks are:
Wrens:
Dunnocks:
Represent the data in a back-to-back stem-and-leaf diagram with rows of width

The total numbers of eggs laid in the nests of two species of bird were recorded over several breeding seasons.
The numbers of eggs laid in the nests of wrens and dunnocks are:
Wrens:
Dunnocks:
Represent the data in a back-to-back stem-and-leaf diagram with rows of width
Given that all of these eggs hatched and that the survival rate for dunnock chicks is estimate the number of dunnock chicks that survived.

The total numbers of eggs laid in the nests of two species of bird were recorded over several breeding seasons.
The numbers of eggs laid in the nests of wrens and dunnocks are:
Wrens:
Dunnocks:
Represent the data in a back-to-back stem-and-leaf diagram with rows of width
Find the survival rate for the wren chicks, given that did not survive.

This back-to-back stem-and-leaf diagram shows the percentage scores of the students who were the top performers in an examination.
Key represents for a girl and for a boy
The students are arranged in a line in the order of their scores. Describe the student in the middle of the line and find the greatest possible number of boys in the line who are not standing next to a girl.
