e. A coin is tossed three times, then the probability of getting two heads is (3...
3. (3 points) A coin is tossed 10 times. Find the chance of getting 6 heads and 4 tai
If a fair coin is tossed 10 times, what is the probability of getting all heads? Express the probability as a simplified fraction. -19
The probability of getting heads from throwing a fair coin is 1/2 The fair coin is tossed 4 times. What is the probability that exactly 3 heads occur? 1/4 The fair coin is tossed 4 times. What is the probability that exactly 3 heads occur given that the first outcome was a head? 3/8 The fair coin is tossed 4 times. What is the probability that exactly 3 heads occur given that the first outcome was a tail? 1/8 The...
a. Suppose that a fair coin is tossed 15 times. If 10 heads are observed, determine an expression / equation for the probability that 7 heads occurred in the first 9 tosses. b. Now, generalize your result from part a. Now suppose that a fair coin is to be tossed n times. If x heads are observed in the n tosses, derive an expression for the probability that there were y heads observed in the first m tosses. Note the...
1. A coin is tossed ten times. Find the probability of getting six heads and four tails. 2. A family has three children. Find the probability of having one boy and two girls 3. What is the probability of getting three aces(ones) if a die is rolled five times? 4. A transistor manufacturer has known that 5% of the transistors produced are defective. what is the probability that a batch of twenty five will have two defective? 5. A telemarketing...
A fair coin is tossed eight times. Calculate (e) the probability of obtaining exaectly 4 heads (b) the probability of obtaining exactly 3 heads (c) the probability of obtaining 3, 4 or 5 heads.
If a fair coin is tossed n times, show that the probability of getting at least k heads is
The probability of getting 2 heads and 1 tail when three coins are tossed is 3 in 8. Find the odds of not getting 2 heads and 1 tail. ANSWER: 5:8?Three Coins are tossed. Find the probability that exactly 2 coins show heads if the first coin shows heads.?ANSWERS: Could it be 1/4?
One fair coin is tossed 25 times, let X be the number of getting heads out of those 25 tossing experiments. What is the mean and variance of X? 12 and 6.25 10 and 2.5 12.5 and 6.25 12.5 and 2.5
Suppose that a coin with probability 0.7 of heads is tossed 100 times. Let X be the number of heads obtained. What is the probability of obtaining a streak of at least 15 consecutive heads in the 100 tosses?