When a fair coin is flipped N times, the average number of heads <n> , is...

If a fair coin is flipped 120 times, what is the probability that: The number of...

If a fair coin is flipped 120 times, what is the probability that: The number of heads is more than 70 The number of heads between 50 and 70?

Given a fair coin, if the coin is flipped n times, what is the probability that...

Given a fair coin, if the coin is flipped n times, what is the probability that heads is only tossed on odd numbered tosses. (tails could also be tossed on odd numbered tosses)

A fair coin is flipped six times. Find the probability that heads comes up exactly four...

A fair coin is flipped six times. Find the probability that heads comes up exactly four times. 1/16 15/64 90/16 1/4 2/3

A fair coin is flipped 400 times. Let X be the number of heads resulting, find...

A fair coin is flipped 400 times. Let X be the number of heads resulting, find P[190<= X <= 200] a) About 34% b) About 95% c) About 68% d) About 25% e) About 50%

a fair coin is flipped 44 times. let X be the number if heads. what normal...

a fair coin is flipped 44 times. let X be the number if heads. what normal distribution best approximates X?

As in the previous problem, a fair coin is flipped 28 times. If X is the...

As in the previous problem, a fair coin is flipped 28 times. If X is the number of heads, then the distribution of X can be approximated with a normal distribution, N(14,2.6), where the mean (μ) is 14 and standard deviation (σ) is 2.6. Using this approximation, find the probability of flipping 18 or 19 heads. You may use the portion of the Standard Normal Table below. z1.21.31.41.51.61.71.81.92.02.12.20.000.88490.90320.91920.93320.94520.95540.96410.97130.97720.98210.98610.010.88690.90490.92070.93450.94630.95640.96490.97190.97780.98260.98640.020.88880.90660.92220.93570.94740.95730.96560.97260.97830.98300.98680.030.89070.90820.92360.93700.94840.95820.96640.97320.97880.98340.98710.040.89250.90990.92510.93820.94950.95910.96710.97380.97930.98380.98750.050.89440.91150.92650.93940.95050.95990.96780.97440.97980.98420.98780.060.89620.91310.92790.94060.95150.96080.96860.97500.98030.98460.98810.070.89800.91470.92920.94180.95250.96160.96930.97560.98080.98500.98840.080.89970.91620.93060.94290.95350.96250.96990.97610.98120.98540.98870.090.90150.91770.93190.94410.95450.96330.97060.97670.98170.98570.9890

A coin is flipped three times; give the probability distribution of the number of heads.

Suppose a fair coin (P[heads] = ½) is flipped 50 times. What is the probability of...

Suppose a fair coin (P[heads] = ½) is flipped 50 times. What is the probability of obtaining 30 or fewer heads using the normal approximation to the binomial with the continuity correction factor? Use Minitab or some other software package to obtain the your probability answer. Round your answer to two decimal points.

When coin 1 is flipped, it lands on heads with probability 3 5 ; when coin...

When coin 1 is flipped, it lands on heads with probability 3 5 ; when coin 2 is flipped it lands on heads with probability 4 5 . (a) If coin 1 is flipped 11 times, find the probability that it lands on heads at least 9 times. (b) If one of the coins is randomly selected and flipped 10 times, what is the probability that it lands on heads exactly 7 times? (c) In part (b), given that the...

When coin 1 is flipped, it lands on heads with probability 3/5 ; when coin 2...

When coin 1 is flipped, it lands on heads with probability 3/5 ; when coin 2 is flipped it lands on heads with probability 4/5 . (a) If coin 1 is flipped 12 times, find the probability that it lands on heads at least 10 times. (b) If one of the coins is randomly selected and flipped 10 times, what is the probability that it lands on heads exactly 7 times? (c) In part (b), given that the first of...

When a fair coin is flipped N times, the average number of heads <n> , is...

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