Question

the income of a group of 10,000 persons was found to be normally distributed with mean Rs. 750 PER MONTH AND THE STANDAND DEVIATION rS. 50. SHOW THAT IN THIS GROUP ABOUT 95% HAD INCOME EXCEEDING rS. 668 AND ONLY 5% HAD PERCENT HAD INCOME EXCEEDING rS. 832, WHAT WAS TH LOWEST INCOME AMONG THE RICHEST 100

Answer 1

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