Pictograms — Notes & Worked Examples Show / Hide
Explanation:
A pictogram uses symbols to represent frequency. Always read the Key first to see how many items one full symbol represents. Half a symbol represents ½ of the key value, a quarter symbol represents ¼, and three-quarters represents ¾.
When drawing a pictogram, line up the symbols neatly in vertical columns of equal width so rows can be compared at a glance, and never forget to complete the Key if asked.
Example 1: Using the pictogram below, find how many cupcakes were sold on Tuesday and in total.
Example 2: In a pictogram, 1 square = 12 cars. How many squares represent (a) 30 cars (b) 45 cars?
Here are the results.
@@TABULAR0@@
Worked Solution & Answer
• There is no key explaining what each circle represents.
• Prawn cocktail has 1 full circle (representing 4) instead of half a circle (representing 2).
• Ready Salted shows 1.5 circles (6) instead of 1.75 circles (7). A1
The key is missing.
Worked Solution & Answer
A quarter circle represents 24 ÷ 4 = 6 street names M1
Avenue has 1 full circle and 1 quarter circle = 24 + 6 = 30 street names. A1
The pictogram shows the results.
The key is missing.
How many students said Chicken?
Worked Solution & Answer
Each full circle represents 40 ÷ 5 = 8 students M1
Chicken has 3 full circles and 1 half circle = 3.5 circles
Number of students for Chicken = 3.5 × 8 = 28. A1
How many goals did City score in March?
Worked Solution & Answer
City = 5 × 8 = 40 goals. A1
The pictogram shows the results for rain, snow and cloud.
Worked Solution & Answer
each small square = 1 day
Rain = 4 × 4 = 16 days
Snow = 2 × 4 + 2 = 10 days M1
Cloud = 4 × 4 + 2 = 18 days
Total rain, snow, cloud = 16 + 10 + 18 = 44 days
Days remaining for Sun and Fog = 55 - 44 = 11 days M1
Sun = Fog + 1 ⇒ 2 × Fog + 1 = 11 ⇒ Fog = 5 days, Sun = 6 days
Sun: 1 full square (4) + 2 small squares (2) = 6 days
Fog: 1 full square (4) + 1 small square (1) = 5 days. A1
You must show how you get your answer. [3 marks]
Worked Solution & Answer
Worked Solution & Answer
The pictogram shows how many bottles they sold one week.
How many more? [2 marks]
Work out the total amount of money made from selling steel bottles that week. [3 marks]
Worked Solution & Answer
Glass = 2 × 20 = 40
Difference = 100 - 40 = 60 A1
Total money = 130 × £17.50 = £2275 A1
The pictogram shows information about the number of houses Ben sold in each of the
first three months of last year.