Question: explain the methods of solving parts a and b. Q1: The marks of students in a course are normally distributed with mean 68 and standard

explain the methods of solving parts a and b.

Q1: The marks of students in a course are normally distributed with mean 68 and standard deviation 10. A student has marks of 98. a) Find the first and 3"d quartile of marks and IQR. b) By doing relevant calculations show whether or not this mark is an outlier? [Ans: a) Q1 = 61.3, Q3 =74.7, IQR =13.4, b) [Q1-1.51QR, Q3+1.51QR] =[ 41.2, 94.8], yes outlier

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