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Questions and answers by
sireesha
Questions (5)
1. Draw a simple random sample of 15 students from your class, and calculate sample mean and sample variance of their
1 answer
727 views
Explain laws of supply and demand by taking atleast 1 item for each type of commodity.
1 answer
421 views
collect the annual sales of a super market for 10 years and fit a straight line trend to the data collected and find the trend
1 answer
505 views
three blocks of coal were analyzed by four chemists and the ash-content in the block was found to be under
blocks chemists 1 11
1 answer
618 views
draw a simple random sample of 15 students from your class,and calculate sample mean and sample variance of their heights(use
1 answer
615 views
