The monthly fees for single rooms at 5 colleges are 370, 310, 380, 340, and 310, respectively. What is the mean of these monthly fees?
Q63. In a school there are 2000 students out of whom 36 per cent are girls. Each boy's monthly fee is Rs 480 and each girl's monthly fee is 25 per cent less than a boy. What is the total of the monthly fees of girls and boys together?
Two coins are tossed simultaneously 1000 times with the following frequencies at different outcomes
OverheadFrequency2 heads3501 head310No head340
if these two coins are tossed again, find the probability of getting
(i) at least 1 head
(ii) at most one head