(i)[2]
Identify a suitable statistical diagram for Ashfaq to show his data, and give a reason for selecting that diagram.
(ii)[2]
Identify a suitable statistical diagram for Kuljit to use for her data, and give a reason for choosing that diagram.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
Ashfaq and Kuljit carried out a school statistics project about the prices of one specific model of headphones for MP3 players. Ashfaq gathered prices from 21 shops. Kuljit used the internet to collect prices from 163 websites.
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Identifies a stem-and-leaf diagram that shows shape, spread, range or all prices (or an equivalent representation).” …
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