02. (a) Two coun are tossed simultaneously. Find the probability
of getting, 2 heads (1) 2 tails (1) aleast one head [3]
(b) How many terms of the AP 24, 2016 Must be taken
Answers
Answer:
Step-by-step explanation: sample space ={HH, HT, TT, TH} n[S]= {4}
event A : getting two heads
n[A]= {1}
p{A}= n{A}/ n{S} = 1/4
event B: getting two tails
n{A}= 1
p{B}= n{B}/ n{s}= 1/4
event C : hetting atleast one head
n{A}= {3}
p{A} = n{A} / n{S} = 3/4
B] 4 terms and 9nterms add upto 72
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