Suppose a coin is to be flipped 8 times. Which of the following shows the number...

Question

Question

Suppose a coin is to be flipped 8 times. Which of the following shows the number of ways that exactly 2 heads can come up?

open parentheses table row 8 row 2 end table close parentheses

open parentheses table row 8 row 6 end table close parentheses

open parentheses table row 6 row 2 end table close parentheses

math Statistics-And-Probability

Answer 1

Answer #1

Here n = 8

and a two heads can occupy any two places out of 8.

so number of ways two can come = 8C2

Answer 2

Similar Homework Help Questions

1.1. Suppose that a fair coin is flipped 6 times in sequence and let X be...

1.1. Suppose that a fair coin is flipped 6 times in sequence and let X be the number of "heads" that show up. Draw Pascal's triangle down to the sixth row (recall that the zeroth row consists of a single 1) and use your table to compute the probabilities P(X k) for k 0,1,2,3, 4,5,6
-3 points Suppose we have a fair coin that is equally likely to come up heads...

-3 points Suppose we have a fair coin that is equally likely to come up heads or tails (a) The coin is flipped 3 times. How many ways can we get exactly 1 head? (b) The coin is flipped 5 times. How many ways can we get exactly 2 tails? (c) The coin is flipped 4 times. How many ways can we get at least 3 tails?
2. (15 pt., 5 pt. each) A coin is flipped 6 times in a row. a....

2. (15 pt., 5 pt. each) A coin is flipped 6 times in a row. a. What is the probability that it lands heads up exactly 4 times? b. What is the probability that it lands heads up at least 4 times? c. What is the probability that it lands heads up at most 3 times?

Suppose you just flipped a fair coin 8 times in a row and you got heads...

Suppose you just flipped a fair coin 8 times in a row and you got heads each time! What is the probability that the next coin flip will result in a heads? Write answer as a decimal and round to 1 place after the decimal point.
3. A fair coin is flipped eight times and the number of heads is counted. Calculate...

3. A fair coin is flipped eight times and the number of heads is counted. Calculate the probability that the coin will land heads more than 6 times. 4. A coin is flipped 8 times. Calculate the mean, variance and standard deviation
when coin 2 is flipped it lands on heads with When coin 1 is flipped, it...

when coin 2 is flipped it lands on heads with When coin 1 is flipped, it lands on heads with probability probability (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 9 times, what is the probability that it lands on heads exactly 6 times? (c) In part (b), given that the first of these 9 flips lands...

2. A coin is altered so that the p coin is flipped three times as altered...

2. A coin is altered so that the p coin is flipped three times as altered so that the probability of getting a head on every flip is 0.6. Suppose this (*) is flipping the coin a binomial experiment? Explain by checking if the four properties of binomial experiments are satisfied. (b) What is the probability that there are at least two heads? (c) What is the probability that an odd number of heads turn out in 3 flips? (d)...
A biased coin with probability 0.6 to land on head is flipped 6 times, calculate the...

A biased coin with probability 0.6 to land on head is flipped 6 times, calculate the probability of: - exactly two heads, - at most one tail, - even number of heads.
1. A fair coin is flipped 6 times. (a) Find the probability that there is exactly...

1. A fair coin is flipped 6 times. (a) Find the probability that there is exactly 3 heads. (b) Find the probability the there are at least 3 heads. (c) Find the probability that there is no head. (d) Find the expected number of heads. (e) Find the standard deviation of the number of heads.

1. A coin is flipped 200 times. Use the Binom.dist function to determine the probability that...

1. A coin is flipped 200 times. Use the Binom.dist function to determine the probability that there are between 39 and 103(inclusive) heads flipped. 2. Use Rand() to generate 1000 random numbers from 0-1 and then use Binom.inv to show the number of heads in flipping a coin 200 times for each of the random numbers.Next prove the average number of heads from the 1000 is close to 100. Use the average function with the results of the Binom.inv.