A survey of 120 software developers was conducted to determine which programming languages they used for a specific project: Python (PPP), Java (JJJ), and C++ (CCC). The results were as follows:
Represent this information in a Venn diagram.
A developer is chosen at random from the survey group.
Calculate the probability that the developer used Java but did not use Python or C++.
Find the probability that the developer used Java or C++ or both.
Given that the developer used Java or C++ or both,
calculate the probability that the developer did not use Python.
Determine whether the events 'using Python' and 'using Java' are statistically independent. Justify your conclusion.
Practise Edexcel A Level Maths Conditional Probability with exam-style questions for A Level Maths. 152 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
