Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Ask your questions and receive detailed answers from professionals with extensive experience in various fields. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

The income of a group of 10000 persons was found to be normally distributed with mean rs. 750 per month and a standard deviation of rs.50. show that of this group about 95% has income exceeding rs.668 and only 5% had income exceeding rs.832 (area between 750 and 668= 0.4495, area between 750 and 832 = 0.4495