Bag I contain 3 red and 4 black balls and Bag II contain 4 red …
Bag I contain 3 red and 4 black balls and Bag II contain 4 red and 5 black balls. One ball is transferred from Bag I to Bag II and then a ball is drawn from Bag II. The ball so drawn is found to be red. Find the probability that the transferred ball is black. (b) The daily earning of a vendor for a period of 40 days are given below Daily earning (Rs.) 118-126 127-135 136-144 145-153 154-162 163-171 172-180 No. of days 3 8 9 12 5 4 2 Calculate Standard Deviation and coefficient of variation.
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