Collecting, Organising and Displaying Data

What is a stem and leaf diagram?

• A method of organizing numerical data based on the place value of the numbers

• A method of organizing alphabetical data

• A method of organizing data based on colors

• A method of organizing data based on shapes

What is the purpose of a dual stem and leaf diagram?

• to simplify data

• To represent two sets of data back to back for comparison

• to arrange many sets of data for display

• To confuse the reader

What is the correct way to draw a stem and leaf diagram?

• Order the numbers from smallest to largest

• Put the values into the diagram without any order

• Split the numbers into three parts

• Order the numbers from largest to smallest

What is the range of a set of data?

• The average of all values

• The mode of the values

• The sum of all values

• The difference between the highest and lowest values

What is the median of a set of data?

• The difference between the highest and lowest values

• The middle value when the data is ordered

• The most frequent value

• The sum of all values

What is the purpose of a legend in a bar chart?

• to make the chart meaningful

• to provide information about the chart

• To provide a key for interpreting the data

• To display the chart title

_____ students were surveyed.

This stem and leaf diagram shows the ages of males and females working in a housing society.

what is the average age of a person living in the housing society?(3 s.f.)(write only number)

Out of the following which would be considered continous data?

• Number of students in a class
• Height of students in a class
• Average temperature in a city
• None of the above

• all of the above

The pictograph shows how many cars were sold by adealership in a week. what are the mean no. of cars sold on the week(write only number)