two coins are tossed simultaneously 80 times and data recorded as:
numbers of heads in trial: 0 1 2
frequency : 20 35 25
The probability of getting two head is
a)1/4
b)1/3
c)7/16
d)none of these.
Answers
Answered by
2
Answer:
Total number of outcomes = 100
Answer 1) : 2 heads coming up
Probability = 36/100
= 9/25
Answer 2) : 3 heads coming up
Probability = 12/100
= 3/25
Answer 3) : At least 1 head coming up
Probability = (36/100 + 38/100 + 12/100)
= 86/100
= 43/50
Answer 4) : Getting more heads than tails
Number of times 2 heads (2 heads and 1 tail) appears = 36
Number of times 3 heads (3 heads and 0 tail) appears = 12
Number of favorable outcomes = 36 + 12 = 48
Probability (Getting more heads than tails)
= Number of favorable outcomes/Total number of possible outcomes
= 48/100
Answered by
3
Answer:
C. 7/16
Step-by-step explanation:
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