Q11.
11. Two coins are tossed simultaneously 450 times. If we get two heads 80 times, one head 220 times and no head 150 times, then find the probability of getting one or more than one head. Give reasons to your answer also.
Kindly refer to the following link for an answer similar to your query:
https://m.meritnation.com/ask-answer/question/two-coins-are-tossed-simultaneously-500-times-if-we-get-two/probability/7027156
https://m.meritnation.com/ask-answer/question/two-coins-are-tossed-simultaneously-500-times-if-we-get-two/probability/7027156