WGU C784 Healthcare Statistics
Module 7 Exam with Accurate
Solutions
What is a frequency table? - ANSWER-A table which records the frequency of instances
in different categories.
What is a population? - ANSWER-An entire pool from which a sample is drawn.
What is a sample space? - ANSWER-The entire set of outcomes for a trial or
experiment.
What is the law of large numbers? - ANSWER-As the number of trials increases the
empirical probability converges on the theoretical probability.
What is an event? - ANSWER-An outcome, or set of outcomes, whose chance of
occurrence can be represented with a probability.
What is relative frequency? - ANSWER-A way to approximate a probability by taking the
number of times an event occurs divided by the total number of trials.
What is a complement? - ANSWER-An event that is the opposite of another event. The
probabilities of an event and its complement always sum to 1.
What is a union? - ANSWER-The union of A and B will have all elements in A, all
elements in B, and all elements in both.
What is conditional probability? - ANSWER-A probability that depends on the
occurrence of an earlier event.
What is the law of total probability? - ANSWER-A fundamental principle of probability
which states that the product of all branches of a probability tree, added together equals
1.
What is a fair experiment? - ANSWER-An experiment in which all outcomes are equally
likely.
What are disjoint events? - ANSWER-Two events which cannot both occur at the same
time.
Module 7 Exam with Accurate
Solutions
What is a frequency table? - ANSWER-A table which records the frequency of instances
in different categories.
What is a population? - ANSWER-An entire pool from which a sample is drawn.
What is a sample space? - ANSWER-The entire set of outcomes for a trial or
experiment.
What is the law of large numbers? - ANSWER-As the number of trials increases the
empirical probability converges on the theoretical probability.
What is an event? - ANSWER-An outcome, or set of outcomes, whose chance of
occurrence can be represented with a probability.
What is relative frequency? - ANSWER-A way to approximate a probability by taking the
number of times an event occurs divided by the total number of trials.
What is a complement? - ANSWER-An event that is the opposite of another event. The
probabilities of an event and its complement always sum to 1.
What is a union? - ANSWER-The union of A and B will have all elements in A, all
elements in B, and all elements in both.
What is conditional probability? - ANSWER-A probability that depends on the
occurrence of an earlier event.
What is the law of total probability? - ANSWER-A fundamental principle of probability
which states that the product of all branches of a probability tree, added together equals
1.
What is a fair experiment? - ANSWER-An experiment in which all outcomes are equally
likely.
What are disjoint events? - ANSWER-Two events which cannot both occur at the same
time.
