Expected Value Answers
Which three criteria do binomial experiments meet?
Use the features on the left to identify which of the following are binomial experiments.
What does each variable represent?n represents the . p represents the . k represents the .
p represents the .
k represents the .
Determine the values of the variables in the binomial probability formula for the following statement: What is the probability of getting exactly 5 “heads” in 10 coin flips? n = p = k =
p =
k =
What is the probability of getting exactly 5 “heads” in 10 coin flips?
Which expression represents the probability of rolling a 5 exactly three times in ten rolls of a number cube with six sides?
A number cube with six sides is rolled seven times. The probability of getting a 4 exactly twice is ⇒ 0.234.
Answer
Using the information on the left, combine the individual probabilities to compute the probability that Peter will pass the quiz.
Describe the pattern in the probability of getting greater numbers of successes.
The probability decreases as the number of successes increases. For instance, the probability of getting 9 or 10 successes in 10 trials is very small and approaches 0 because such a high number of successes is very unlikely for this distribution.
Which of the following ideas did you include in your response? Check all of the boxes that apply.
The distribution is
roll a six-sided number cube 10 times. P = roll a six-sided number cube 20 times. P =
roll a six-sided number cube 20 times. P =
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