Question

Three coins are tossed simultaneously 500 times with the following frequency of different outcome. outcome =3tails 2tails 1tails no tails frequency =200 100 150 50 find the probability of getting 1=Atleast one tail 2=two head and one tail ​

Answer 1

Answer:

Step-by-step explanation:

P(atleast one tail)=P (1 tail)+P (2 tail)+P (3 tail)

= 1-P(0 tail)

=1-(50÷500)

=1-(1/10)

=9/10

Answer 2

Answer:

Step-by-step explanation:

3tail    2tails   1tail   no tail

200     100      150     50

probabiity of atleast 1tail=

(150+100+200)/500

=450/500

=0.9

probability of two head and one tail= 150/500=15/50=0.3