Question

Flip a fair coin 10 times. What is the probability of getting at least 7 tails?

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Answer #1

flip a coin 10 times. find the probability of getting
tails in the first four flips.

If you flip a fair coin and get heads 10 times in a row, what is
the chance of getting tails on the next flip? Explain.

One fair coin is tossed 10 times, what is the probability of
getting at least 8 heads out of 10 tossing experiments?
Entry field with incorrect answer
0.0547
0.0107 (WRONG)
0.0537
0.0439

If you flip a fair coin 20 times, find the probability of
getting at most 5 heads. Round your answer to 3 decimal places.

You are flipping a fair coin with one side heads, and the other
tails. You flip it 30 times.
a) What probability distribution would the above most closely
resemble?
b) If 8 out of 30 flips were heads, what is the probability of
the next flip coming up heads?
c) What is the probability that out of 30 flips, not more than
15 come up heads?
d) What is the probability that at least 15 out 30 flips are
heads?...

Suppose a fair coin is flipped three times.
A). What is the probability that the second flip is heads?
B). What is the probability that there is at least two
tails?
C). What is the probability that there is at most two heads?

A weighted coin has probability 0.7 of getting heads, and 0.3 of
getting a tails. If the coin is tossed 6 times, what is the
probability of getting at least 4 heads? What is the probability of
getting less than 4 heads?

You flip a coin until getting heads. Let X be the number of coin
flips.
a. What is the probability that you flip the coin at least 8
times?
b. What is the probability that you flip the coin at least 8
times given that the first, third, and fifth flips were all
tails?
c. You flip three coins. Let X be the total number of heads. You
then roll X standard dice. Let Y be the sum of those...

Suppose you flip a fair coin six times where A is the number of
tails and B is the number of heads. Prove if E(X*Y) is not equal to
E(X)E(Y).

Suppose you flip a fair coin 10 times. What is the
probability of the last two flips both being heads if you know that
the first eight flips were heads?

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