Question

1. What is the probability of occurrence of an event?
2. A coin is tossed 120 times and head is obtained 56 times. Now, if a coin is tossed at random, what
is the probability of getting a head?
3. A coin is tossed 160 times and tail is obtained 145 times. Now, if a coin is tossed at random, what is
the probability of getting a tail?
4. In 65 throws of a dice, 4 is obtained 25 times. Now, in a random throw of a dice, what is the probability of getting 4?
probability of getting 4?
5. In 160 throws of a dice, 5 is obtained 60 times. In a random throw of dice, what is the probability of
getting 5?
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Answer 1

2)-

Total number of trials =100.

Number of times tail appeared =10.

Number of times head appeared =(100−10)=90

P (Getting head) =  

Total  number  of  trials

Number  of  times  head  appeared

​  

 

=  

100

90

​  

 =  

10

9

​

I will only tell you an example of this type of question.

You will try it for yourself.