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Hi sir,
Please explain this question in detail and what formula to apply
Q1)A normal distribution has a mean of 75and a variance of 25.
what is the upper quartile of this distribution?
Q2)A normal distribution has mean of 150,and a standard deviation of 20.
80% of the distribution is below which of the following (approximately)?In future you must ask in the Ask the Tutor Forum if you want me to answer – this forum is for students to help each other.
Why are you attempting questions for which you do not have an answer? You should be using a Revision Kit from one of the ACCA approved publishers – they have answers and explanations.
However, everything needed to be able to answer these questions is covered in my free lectures. The lectures are a complete free course for Paper MA and cover everything needed to be able to pass the exam well.
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