Edexcel IGCSE Math B 10.D modal class and median class
Practise class-interval questions by finding the highest-frequency interval or locating where the middle value falls in the table.
- Syllabus
- First assessment 2018
- Course
- Math B 4MB1
Practise class-interval questions by finding the highest-frequency interval or locating where the middle value falls in the table.
Chetan owns a fruit shop.
In January, Chetan sold 560 kg of citrus fruit.
In February, Chetan sold 518 kg of citrus fruit.
The table below shows the weight of citrus fruit, berries and tropical fruit Chetan sold in March.

The table below gives information about the weight, in kg, of berries sold on each of the 30 days in April.

Chetan wants to buy 60 kg of apples for his shop from US traders or French traders.
US traders: 12 kg box of apples for $29.50, free delivery, buy 4 boxes and get a 5th box free.
French traders: 1.72 euros per kg of apples, total delivery cost of 22.80 euros, special offer of 15% off the cost of apples and delivery.
Exchange rate: $1=0.92 euros.
Find the class interval that contains the median weight.
Final answer:
5<w≤10
B1; allow 5–10 or 5<w<10.