The annual sales of two products are shown in the following radar chart:
What were the average monthly sales of product A to the nearest cent?
What were the average monthly sales of product B to the nearest cent?
What was the range of the monthly sales of product A?
What was the range of the monthly sales of product B?
The annual sales of two products are shown in the following radar chart:
How many units of Product B were sold in March?
How many units of Product A were sold in November?
How many units of Product A were sold throughout the entire year?
The following table shows the monthly sales of two products:
| Month | Product A (number sold) | Product B (number sold) |
|---|---|---|
| \text{January} | \quad \qquad \quad \enspace 10 | \quad \qquad \quad \enspace 7 |
| \text{February} | \quad \qquad \quad \enspace 4 | \quad \qquad \quad \enspace 6 |
| \text{March} | \quad \qquad \quad \enspace 6 | \quad \qquad \quad \enspace 5 |
| \text{April} | \quad \qquad \quad \enspace 1 | \quad \qquad \quad \enspace 8 |
| \text{May} | \quad \qquad \quad \enspace 3 | \quad \qquad \quad \enspace 8 |
| \text{June} | \quad \qquad \quad \enspace 7 | \quad \qquad \quad \enspace 4 |
| \text{July} | \quad \qquad \quad \enspace 10 | \quad \qquad \quad \enspace 3 |
| \text{August} | \quad \qquad \quad \enspace 2 | \quad \qquad \quad \enspace 5 |
| \text{September} | \quad \qquad \quad \enspace 4 | \quad \qquad \quad \enspace 4 |
| \text{October} | \quad \qquad \quad \enspace 9 | \quad \qquad \quad \enspace 7 |
| \text{November} | \quad \qquad \quad \enspace 3 | \quad \qquad \quad \enspace 7 |
| \text{December} | \quad \qquad \quad \enspace 8 | \quad \qquad \quad \enspace 9 |
Construct a radar chart that represents the two sets of data.
The Pareto chart shows the total medal tally of each country at the Winter Olympics:
What does the height of each column represent?
What does the line graph represent?
A marine scientist spent the day fishing to collect data on the range of species in an enclosed dam. She recorded the number of each fish species that were caught, and constructed the following Pareto chart. Assume that the bars are in line with the gridlines, or exactly halfway between gridlines.
Find the number of Bream caught.
Find the number of Bass caught.
Find the difference between the number of Bream and Bass caught.
Determine the percentage of fish caught that were Bass.
Determine the percentage of fish caught that were Mullet.
Determine the total percentage of fish caught that were either Mullet or Bass.
It is expected that the population of Mullet and Bass will make up 50\% of the fish population. Determine the difference between this percentage and the total percentage the marine scientist observed in part (f).
At Pareto's Burritos, the owners regularly ask their customers if and why they are not happy with their burritos. They created the chart below for last month's feedback. Assume that the bars are in line with the labels on the left vertical axis, or exactly halfway between two labels.
Find the number of complaints for each of the following reasons of customer dissatisfaction:
Wait time
Guac amount
Not fresh
Too spicy
Filling amount
Expensive
Find the total number of customers who expressed dissatisfaction last month.
Identify the following:
Most frequent complaint
Second most frequent complaint
Third most frequent complaint
Find the percentage of customer complaints made up by the following. Round your answer to the nearest percentage.
Most frequent complaint
Second most frequent complaint
Third most frequent complaint
Hence, find the percentage of customer complaints made up by the three most frequent complaints.
A mechanic recorded the major reasons overheated cars were brought into the centre. The Pareto chart shows the results. Assume that each bar and point either lines up with a given value or is midway between.
Find the number of cars brought to the centre due to the following faulty parts:
Radiator
Fan
Thermostat
Fan belt
Coolant
Seal
Find the total number of overheated cars that were brought into the centre.
Find the percentage of cars brought to the centre due to the following faulty parts:
Radiator
Fan
Thermostat
Fan belt
Coolant
Seal
The mechanic put in an order for parts to fix the cars with a faulty fan, a broken fan belt or a crack in the radiator. What percentage of all cars brought in did he place an order for?
Bill caught the train and noted what activity each person in his carriage (excluding himself) was doing between the next two stops. The following Pareto chart shows the results:
Find the total number of people on the carriage (excluding Bill).
Using the bar section of the Pareto chart, find the percentage of people on the carriage (excluding Bill) that make up the three most common activities. Round your answer to the nearest whole percent.
A family analysed how much of their monthly income goes towards various expenses. The following Pareto chart shows the results. Assume that the height of each bar is either on a marked grid line, or exactly halfway between the marked grid lines.
What percentage of monthly expenses goes towards the three least contributing expenses.
After expenses the family is able to save \$870 each month, determine their net monthly income.
Is the bar graph or the line graph more useful for interpreting how much each expense contributes relative to the total expense?
The major reasons flights were delayed at an international airport over a one month period are shown in the following Pareto chart:
Find the number of flights delayed due to the plane needing to be refuelled.
Estimate the percentage of flights that arrived late because of extreme weather.
Susana attached an energy meter to the household items that use electricity to determine how much each contributes to her quarterly electricity bill. The results are shown in the following Pareto chart:
Find the total of her quarterly electricity bill.
How much more did the air conditioner cost to run than the oven?
Find the percentage of the total bill that was due to the oven. Round your answer to the nearest whole percent.
Which single source of electricity cost would Susana need to stop using to reduce her bill by approximately 10\%?