 |
| 1 | |
Which of the following is a correct statement about a probability? |
| | A) | It may range from 0 to 1. |
| | B) | It may assume negative values. |
| | C) | It may be greater than 1. |
| | D) | It cannot be reported to more than 1 decimal place. |
|
|
|
| 2 | |
An experiment is a |
| | A) | Collection of events. |
| | B) | Collection of outcomes. |
| | C) | Always greater than 1. |
| | D) | The act of taking a measurement or the observation of some activity. |
|
|
|
| 3 | |
Which of the following is not a type of probability? |
| | A) | Subjective |
| | B) | Independent |
| | C) | Relative frequency |
| | D) | Classical |
|
|
|
| 4 | |
Events are independent if |
| | A) | By virtue of one event happening another cannot. |
| | B) | The probability of their occurrence is greater than 1. |
| | C) | We can count the possible outcomes. |
| | D) | The probability of one event happening does not affect the probability of another event happening. |
|
|
|
| 5 | |
The Special Rule of Addition is used to combine |
| | A) | Independent events. |
| | B) | Mutually exclusive events. |
| | C) | Events that total more than one. |
| | D) | Events based on subjective probabilities. |
|
|
|
| 6 | |
We use the General Rule of Multiplication to combine |
| | A) | Events that are not independent. |
| | B) | Mutually exclusive events. |
| | C) | Events that total more than 1.00. |
| | D) | Events based on subjective probabilities. |
|
|
|
| 7 | |
When we find the probability of an event happening by subtracting the probability of the event not happening from 1, we are using |
| | A) | Subjective probability. |
| | B) | The complement rule. |
| | C) | The general rule of addition. |
| | D) | The special rule of multiplication. |
|
|
|
| 8 | |
When we determine the number of combinations |
| | A) | We are really computing a probability. |
| | B) | The order of the outcomes is not important. |
| | C) | The order of the outcomes is important. |
| | D) | We multiply the likelihood of two independent trials. |
|
|
|
| 9 | |
The difference between a permutation and a combination is: |
| | A) | In a permutation, order is important and in a combination, it is not. |
| | B) | In a permutation, order is not important and in a combination, it is important. |
| | C) | A combination is based on the classical definition of probability. |
| | D) | A permutation is based on the classical definition of probability. |
|
|
|
| 10 | |
The Accounting Association has 15 members, 10 of which are CPAs. The members are to be selected to study ways to increase membership. What is the probability all three selected are CPAs? |
| | A) | .296 |
| | B) | .264 |
| | C) | .736 |
| | D) | None of the above. |
|
|
|
| 11 | |
An electronics store has two managers, four department heads, twelve clerks, and eight stockers. If an employee is selected at random, what is the probability the person selected is either a stocker or a clerk? |
| | A) | .46 |
| | B) | .77 |
| | C) | .15 |
| | D) | None of the above. |
|
|
|
| 12 | |
Four children are to be chosen from a class of twenty to go on an outing. How many ways is this possible? |
| | A) | 4,845 |
| | B) | 116,280 |
| | C) | 160,000 |
| | D) | None of the above. |
|
|
|
| 13 | |
Thirty horses are in a race. How many ways may first, second and third prizes be awarded? |
| | A) | 24,360 |
| | B) | 4,060 |
| | C) | 27,000 |
| | D) | 8,120 |
|
|
|
| 14 | |
Sixty percent students take English. Fifty percent take math. Twenty-five percent take both. What proportion of students takes neither? |
| | A) | 15% |
| | B) | 85% |
| | C) | 75% |
| | D) | 10% |
|
|
|
| 15 | |
A box contains 7 computer chips of which 3 are defective. If you choose 2 at random without replacement, what is the probability they are both good? |
| | A) | 2/7 |
| | B) | 4/7 |
| | C) | 3/4 |
| | D) | 2/3 |
|
|
.