At Least One Probability

What is "q" in the equation?

• Probability of success on a single trial

• Probability of failure on a single trial

• Binomial Probability (final answer)

What is "q" in the following scenario?

If you were to flip a coin 20 times, what is the probability you would get exactly 5 heads?

• 5/20

• 0.5

• 5

What is "q" in the following scenario? A research team at Cornell University conducted a study showing that approximately 10% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to brain, diminishing cerebral functions. At a board meeting of 20 businessmen, all of whom wear ties, what is the probability that at least one tie is too tight?

• 1/20

• 0.1

• 0.9

What is "q" in the following scenario? A quarterback has a incomplete passing percentage of 30%. What is the probability that he complete exactly 8 of his 20 passes?

• 8/20

• 0.3

• 0.7

What is "q" in the following scenario? The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. What is the probability that at least 2 of the first 10 blood donors has Type B blood? 

• 0.89

• 0.11

• 2/10

What is n in this equation?

• Number of trials

• Number of successes

• Number of failures

What is x in this equation?

• Number of trials

• Number of successes

• Number of failures

Choose the correct sign

probability of "at least 7"

• P(X>7)

• P(X<7)

• P(X≥7)

• P(X≤7)

The table represents the probability of guessing correct on a 5 question true-false quiz.  Find the probability of getting at least 4 questions correct.

• 0.03125

• 0.15625

• 0.3125

• 0.1875

The table represents the probability of guessing correct on a 5 question true-false quiz. Find the probability of getting all 5 questions correct.

• 0.03125

• 0.15625

• 0.3125

• 0.1875