Show Register now for special offers +91 Home > English > Class 12 > Maths > Chapter > Probability And Probabiliyt Distribution > A coin is tossed 10 times. The... Text Solution 10112199 Answer : B Solution : <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/NDA_14Y_MATH_C21_E01_043_S01.png" width="80%"> <br> Hence, total number of points in the sample space is 11. Answer Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams. Add a public comment... Follow Us: Popular Chapters by Class: Answer Verified Hint: Suppose there are n number of tosses of fair coins. First of all, we will find the probability of getting 0 heads. That is the probability of getting the results of all the fair coin tosses as tails. Then we find the probability of getting only 1 head. The probability of not getting at least two heads will be equal to the sum of probability of getting no heads and probability of getting only 1 head out of n tosses. Thus, we can find the probability of not getting at least two heads. The probability of getting at least two heads will be one minus probability of not getting at least two heads. To find the probabilities, we will be making use of concepts of combinations. Complete step-by-step answer: Note: If two events two or more events are happening simultaneously, the probability of all the event happening is given by the product of individual probability, whereas if of them happening or another is happening, then the probability of first or second event happening is given by the sum of probability of first event and probability of second event. To summarise, probability of A and B is P(A).P(B) and probability of A or B is P(A) + P(B). How many combinations are there for heads and tails?There are 1,024 possible sequences of heads and tails in 10 tosses of a coin; 252 of them contain exactly 5 heads.
How many possibilities are there when you toss a coin 4 times?∴The total number of possible outcomes after 4 times = 2 × 2 × 2 × 2= 16.
When 4 fair coins are tossed what is the probability of getting 3 heads?N=3: To get 3 heads, means that one gets only one tail. This tail can be either the 1st coin, the 2nd coin, the 3rd, or the 4th coin. Thus there are only 4 outcomes which have three heads. The probability is 4/16 = 1/4.
What is the probability of getting more heads than tails?The probability of getting more heads than tails is 12.
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