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NextQ31

The age of a group of persons follows normal distribution with mean 45 years and standard deviation 10 years. Calculate Z-score for a randomly selected person having age 60 years.

Standard Normal VariableStudy Simplify Special1SQ
Question 30

The monthly expense of a group of persons follows normal distribution with mean ₹ 10,000 and standard deviation ₹ 1000. A student has obtained a Z-score = ₹ 1 for randomly selected person having monthly expense more than 11,000. Is this calculation of Z-score true? Give reason.

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