Question

2 coins are tossed 1000 times and outcomes are 2head-200 times,1 head-550 times,no head-250 times
if coin is tossed again find;
a. at most one head
b.1 head
c. no head

Answer 1

1.Total no. of obs. = 1000
favourable outcomes = 550+250
=800
probability = 800/1000
=4/5
2.favouable outcomes = 550
probability = 550/1000
=0.55
3.favourable outcomes = 250
probability = 250/1000
=0.25

hope it helps you
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Answer 2

Hi friend ,

a)Total no. of times coin is tossed = 1000
No. of times atmost one head comes = 550 +250= 800
Probability ( at most one head ) = 800/1000
=4/5

b) Total no. of times coin is tossed = 1000
No. of times one head comes = 550
Probability ( one head ) = 550/1000
=11/20

c) Total no. of times coin is tossed = 1000
No. of times no head comes up = 250
Probability ( no head ) = 250/1000
=1/4
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Hope this helped u....
PLZ MARK AS BRAINLIEST.....