Respuesta :
Answer:
11/16
Explanation:
HHHH, HHHT,
HHTH, HTHH,
THHH, [HHTT,]
[HTHT], [HTTH],
[TTTT], [TTTH,]
[TTHT], [THTT]
[HTTT,] [TTHH,]
[THTH,] [THHT]
If we look at this, we see that there are 11 ways out of 16 in which we get at least 2 tails.
Probability getting At least two tails is 11/15
Given that;
Coin tossed number of times = 4 times
Find:
Probability [At least two tails]
Computation:
Total number of toss = 2⁴
Total number of toss = 16
Number of chances less then two heads = 5
So,
At least two tails = 16 - 5
At least two tails = 11
Probability [At least two tails] = 11/15
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