Question 1

The type of frequency distribution which is used for finite discrete data is:&#10;A) hypergeometric&#10;B) uniform&#10;C)dependent&#10;D)b and c

Accepted Answer

The hypergeometric distribution is used for a sample taken from a finite population without replacement, making it the suitable choice for finite discrete data. The uniform distribution is more suitable for continuous data with a constant probability density function.

Question 2

A freshman English class has 6 sections at 8 AM, 4 sections at 10 AM, 3 sections at 12 PM, and 5 sections at 2 PM. What is the probability that you will be given the class at 8 AM or 2 PM?

Accepted Answer

0.611

Question 3

A hospital laboratory technician randomly selects three blood samples from a lot of 20 that is known to be 10% nonconforming. What is the probability that the sample will contain no nonconforming units?

Accepted Answer

0.716

Question 4

When the word AND is verbalized in probability it means to perform the arithmetic operation of:&#10;A) multiplication&#10;B) addition&#10;C)division&#10;D)exponentiation

Accepted Answer

In probability, the word "AND" usually indicates a situation where two or more events occur together. The probability of this joint occurrence can be calculated by multiplying the probability of each individual event. Therefore, the best choice for the arithmetic operation associated with the word "AND" in probability is multiplication.

Question 5

When the occurrence of an event has no influence on the occurrence of a second event, it is called:&#10;A) independent&#10;B) mutually&#10;C dependent&#10;D) a and b

Accepted Answer

When the occurrence of an event has no influence on the occurrence of a second event, it is called independent. This means that the probability of the second event remains the same regardless of whether the first event occurs or not.

Question 6

When the word OR is verbalized in probability it means to perform the arithmetic operation of:&#10;A) multiplication&#10;B) diversion&#10;C) addition&#10;D) exponentiation

Accepted Answer

When the word OR is used in probability, it refers to the addition rule. This means that the probability of event A OR event B occurring is equal to the probability of event A plus the probability of event B. It is important to note that this rule only applies when the events are mutually exclusive, meaning they cannot occur at the same time. If the events are not mutually exclusive, the addition rule must be modified to account for the overlap between the events.

Question 7

The probability of two or less is equal to: _a.P₀ + P₁c. P₂ + P₁ + P₀ B) (P₀) (P₁) (P₂) D) (P₀) (P₁)

Accepted Answer

The answer of The probability of two or less is...

Question 8

Which of the following is a method of counting events:&#10;A) addition&#10;B) outcomes&#10;C) division&#10;D) permutation

Accepted Answer

Permutation is a method used in mathematics and statistics to count the number of ways events can occur when the order of the events matters.

Question 9

When the occurrence of one event negates the possibility of another event, it is called:&#10;A) independent&#10;B) mutually exclusive&#10;C) dependent&#10;D) b and c

Accepted Answer

Mutually exclusive events cannot happen at the same time. If one event occurs, the other event is no longer possible.

Question 10

A sample of 3 numbers is selected from the numbers 1 to 45. How many different combinations are possible?

Accepted Answer

The answer of A sample of 3 numbers is selected...

Question 11

An inspector samples four PC's from a steady stream of computers that is known to be 12% nonconforming. What is the probability of selecting two nonconforming units in the sample.

Accepted Answer

The answer of An inspector samples four PC's from a...

Deck 8: Fundamentals of Probability