PSY-3301 Chapter 9 T/F Quiz
Question 1
4 out of 4 points
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In (P + Q)6 the term Q6 indicates 0 P events.
Question 2
0 out of 4 points
The requirement that NP ?5= 10 is a necessary and sufficient requirement for using the normal approximation.
Question 3
0 out of 4 points
Because Table B, “Binomial Distribution,” in Appendix D of the textbook only lists probabilities for values of P = 0.40 and 0.45, it is not possible to use the binomial distribution to solve problems where P = 0.43.
Question 4
4 out of 4 points
You are solving a binomial problem with N = 25, It is theoretically and practically possible to solve the problem using the binomial expansion.
Question 5
4 out of 4 points
In (P + Q)7 the term Q7 indicates 0 P events.
Question 6
4 out of 4 points
The binomial distribution requires that P and Q stay the same from trial-to-trial.
Question 7
0 out of 4 points
For the binomial distribution to be appropriate, P and Q must be equal.
Question 8
0 out of 4 points
For biased coins, the probability of getting 5 heads out of a toss of 5 coins equals the probability of getting 5 tails out of a toss of 5 coins.
Question 9
4 out of 4 points
One can appropriately apply the binomial distribution if P = 0.37 and Q = 0.63.
Question 10
4 out of 4 points
To apply the binomial distribution, three of the conditions which must be met are that there is a series of N trials where the outcomes are mutually exclusive and there is independence between trials.
Question 11
4 out of 4 points
If P = 0.30 and Q = 0.67, the binomial distribution does not apply.
Question 12
4 out of 4 points
P + Q = 1.
Question 13
4 out of 4 points
The probability of 6 P events when N = 10 and P = 0.7 is the same as 4 Q events if Q = 0.3 and N = 10.
Question 14
4 out of 4 points
In order to correctly apply the binomial distribution, one of the conditions that must be met is that there are only two possible outcomes on each trial.
Question 15
4 out of 4 points
A smaller N is required to use the normal approximation if P = 0.60 than if P = 0.80.
Question 16
0 out of 4 points
(P + Q)2 = P2 + Q2 in the binomial expansion.
Question 17
0 out of 4 points
The binomial distribution only applies to flipping coins and not to real life situations.
Question 18
4 out of 4 points
The probability of 7 P events when N = 10 and P = 0.8 is the same as 3 Q events if Q = 0.2 and N = 10.
Question 19
4 out of 4 points
To apply the binomial distribution properly (P + Q) must equal 1.00.
Question 20
0 out of 4 points
A valid example of a situation where one can apply the binomial distribution is in determining the probability of rolling a 6 or a 5 with the toss of a pair of dice.
Question 21
0 out of 4 points
If P ¹ Q, the binomial distribution will still be normally distributed.
Selected Answer:
Question 22
0 out of 4 points
The binomial distribution is always symmetrical.
Question 23
4 out of 4 points
One can look at picking a winner or not picking a winner in a series of races at the track as fitting the requirements of the binomial distribution (assuming that each horse has an equal chance of winning a particular race and there are the same number of horses in each race).
Question 24
0 out of 4 points
If P >Q, the binomial distribution will be symmetrical.
Question 25
4 out of 4 points
The probability of getting a result as extreme or more extreme than 5 heads out of a toss of 7 unbiased coins is 0.4532.