Chapter 5: Q 5.11. (page 200)
Which of the following numbers could not possibly be a probability? Justify your answer.
a. 5/6
b. 3.5
c. 0
Short Answer
3.5 could not possibly be a probability because it is more than 1.
Chapter 5: Q 5.11. (page 200)
Which of the following numbers could not possibly be a probability? Justify your answer.
a. 5/6
b. 3.5
c. 0
3.5 could not possibly be a probability because it is more than 1.
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Get started for freeIn each of Exercises 5.167-5.172, we have provided the number of trials and success probability for Bernoulli trials. LetX denote the total number of successes. Determine the required probabilities by using
(a) the binomial probability formula, Formula 5.4 on page 236. Round your probability answers to three decimal places.
(b) TableVII in AppendixA. Compare your answer here to that in part (a).
Let A, B and C be events of a sample space. Complete the following table.
Events | Description |
(A & B) | Both A and B occur |
At least one of A and B occur | |
(A & (not B)) | |
Neither A nor B occur | |
( A or B or C | |
All three A, B and C occur | |
Exactly one of A, B and C occur | |
Exactly two of A, B and C occur | |
At most one of A, B and C occur |
What does it mean two events to be mutually exclusive.?
Die and coin. Consider the following random experiment : First , roll a die and observe the number of dots facing up: then toss a coin the number of times that the die shows and observe the total number of heads. Thus , if the die shows three dots facing up and the coin (which is then tossed tree times) comes up heads exactly twice, then the outcome of the experiment can be represent as (3,2).
Part (a) Determine a sample space for this experiment.
Part (b) Determine the events that the total number of heads is even.
Coin Tossing. When a dime is tossed four times , there are the following 16 possible outcomes.
Here, for example, HTTH represents the outcomes that the first toss is heads, the next two tosses are tails, and the fourth toss is heads. List the outcomes constituting each of the following four events.
A = event exactly two heads are tossed,
B = event the first two tosses are tails,
C = event the first toss is heads,
D = event all four tosses come up the same.
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