City Guilds Model Questions Vol1 2025 Information Technology Question 47
Practice objective / multiple choice question 47 from the 2025 City Guilds Model Questions Vol1 Information Technology examination.
A survey of 295 customers recorded their rating (1-5) and the purchase‑amount category (Low, Medium, High). The frequencies are given in the table below.\n\n\begin{tabular}{c|ccc}\nRating & Low & Medium & High \\ \hline\n1 & 30 & 10 & 5 \\n2 & 25 & 15 & 10 \\n3 & 20 & 30 & 20 \\n4 & 10 & 25 & 30 \\n5 & 5 & 20 & 40 \\n\end{tabular}\n\n(a) What is the probability that a randomly selected customer who gave a rating of 4 or 5 spent at least a Medium amount?\n(b) Assuming the monetary values Low = \(0.5\) thousand, Medium = \(2\) thousand and High = \(4\) thousand dollars, find the expected purchase amount (in thousand dollars) for customers with rating 3. Give each answer to three decimal places.
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This is City Guilds Model Questions Vol1 2025 Information Technology Question 47. It is one of the objective questions from the 2025 City Guilds Model Questions Vol1 Information Technology examination.
Difficulty level: Hard .
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