The weights of apples in a harvest are normally distributed with a mean of 160 g and a standard deviation of 15 g.
Find the weight below which 75% of the apples lie.
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Markscheme
2.4.6 Probabilities using the normal distribution (A-level only) Questions
147 exam-style questions on OCR A Level Maths 2.4.6 Probabilities using the normal distribution (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.