Strengthen data and probability skills through statistical diagrams, grouped averages, probability rules, tree diagrams and conditional events.
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: euros.
Chetan is going to draw a pie chart for this information.
Calculate the size, in degrees, of the angle of the sector in the pie chart for the weight of berries sold in March.
Find the class interval that contains the median weight.
Calculate an estimate for the mean weight, in kg, of berries sold on each day in April.
Here are the weights, in kilograms, of 12 children.
Calculate
the median weight,
the mean weight.
One of these 12 children is chosen at random.
Find the probability that this child has a weight that is less than 28 kg.