Sir ek sums mujhe nhi aa raha hai karwa dijiye please Question :- If an unbiased coin is tossed four times, what is the probability of getting at least one head??
n(S) = 2 to the power 4 =16 n(E) = 1(-) appearing all Tails As we know, Coin has two sides, means for both sides, the chance to come is 1/2 In this Q., coin is tossed 4 times, so we will write it as (1/2) to the power 4. = 1/16 Now, as we have written above, n(E) = 1 (-) appearing all Tails = 1 (-) 1/16 = 15/16
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Sir ek sums mujhe nhi aa raha hai karwa dijiye please
Question :- If an unbiased coin is tossed four times, what is the probability of getting at least one head??
n(S) = 2 to the power 4 =16
n(E) = 1(-) appearing all Tails
As we know, Coin has two sides, means for both sides, the chance to come is 1/2
In this Q., coin is tossed 4 times, so we will write it as (1/2) to the power 4. = 1/16
Now, as we have written above, n(E) = 1 (-) appearing all Tails
= 1 (-) 1/16
= 15/16
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