Data

Dee drew a line graph of her pulse rate (beats per minute) over time (minutes): 0 to 66, 10 to 102, 20 to 102, 30 to 118, 40 to 106, 50 to 130, 60 to 130, 70 to 88, 80 to 68. At what time was her pulse rate 118 beats per minute?

Dee's pulse line graph reads: 0 to 66, 10 to 102, 20 to 102, 30 to 118, 40 to 106, 50 to 130, 60 to 130, 70 to 88, 80 to 68 (beats per minute). What was her highest pulse rate?

Dee's pulse line graph starts at time 0 minutes. The readings are: 0 to 66, 10 to 102, 20 to 102, 30 to 118 (beats per minute). What was her pulse rate at the very start?

On Dee's line graph her pulse rate was 106 at 40 minutes and 130 at 50 minutes. Between 40 and 50 minutes, what happened to her pulse rate?

1. AIt increased
2. BIt decreased
3. CIt stayed the same

Dee's pulse line graph reads: 10 to 102, 20 to 102, 30 to 118 (beats per minute). What was her pulse rate at 20 minutes?

Dee's pulse line graph reads 102 beats per minute at 10 minutes and 102 beats per minute at 20 minutes. So her pulse rate was the same at 10 minutes and 20 minutes.

Dee's highest pulse rate was 130 beats per minute and her pulse at the start (0 minutes) was 66. What is the difference between these two values?

Which type of graph is best for showing how one measurement changes over time, such as a temperature during a day?

1. AA line graph
2. BA pie chart
3. CA scatter graph

A frequency diagram shows vehicle speeds: 20-40 km/h (6 vehicles), 40-60 km/h (12), 60-80 km/h (8), 80-100 km/h (4). How many vehicles were travelling 60 or more km/h but less than 80 km/h?

A frequency diagram shows vehicle speeds: 20-40 km/h (6), 40-60 km/h (12), 60-80 km/h (8), 80-100 km/h (4). How many vehicles were travelling less than 60 km/h?

A frequency diagram shows vehicle speeds: 20-40 km/h (6), 40-60 km/h (12), 60-80 km/h (8), 80-100 km/h (4). How many vehicles passed the school in total?

A frequency diagram shows vehicle speeds: 20-40 km/h (6), 40-60 km/h (12), 60-80 km/h (8), 80-100 km/h (4). Which speed group is the most common?

1. A20-40 km/h
2. B40-60 km/h
3. C60-80 km/h

On a speed frequency diagram, a measurement on the group boundary is recorded in the group above. Which group does a vehicle travelling at exactly 40 km/h go into?

1. A20-40 km/h
2. B40-60 km/h
3. CIt is not counted

A measurement on a group boundary is recorded in the group above. On a travel-time frequency diagram, which group does a travel time of exactly 30 minutes go into?

1. A20 to 30 minutes
2. B30 to 40 minutes
3. C10 to 20 minutes

In a frequency diagram, the data is sorted into equal groups (intervals) and the height of each bar shows how many are in that group.

A class measured how high they could jump. The tallest jump recorded was 36 cm and the shortest was 18 cm. What was the highest jump, in centimetres?

A class measured how high they could jump. The tallest jump was 36 cm and the shortest was 18 cm. What was the lowest jump, in centimetres?

A scatter graph plots plant height (cm) against number of leaves. The pairs are: (6,2), (11,4), (15,7), (8,3), (12,6), (17,8), (15,8), (18,9), (9,4), (11,6), (13,6). How many plants were measured?

A scatter graph of plant height (cm) against number of leaves has the point (18, 9). How many leaves does the 18 cm plant have?

A scatter graph of plant height (cm) against number of leaves has the point (6, 2). What is the height, in centimetres, of the plant that has only 2 leaves?