C784 Applied Healthcare Statistics - Set 2 - Part 2

Test your knowledge of technical writing concepts with these practice questions. Each question includes detailed explanations to help you understand the correct answers.

Question 21: Which measure of spread is the difference between the third and first quartile?

Mean

Mode

IQR

Standard deviation

Question 22: In a normal distribution, what is the approximate percentage of data within one standard deviation of the mean?

50%

68%

95%

99%

Question 23: Which type of data has distinct values and is counted, not measured?

Continuous data

Qualitative data

Discrete data

Ordinal data

Question 24: What is the statistical term for an observation that is significantly distant from other data points?

Outlier

Quartile

Mean

Mode

Question 25: What does a five-number summary of a dataset include?

Mean, median, mode, range, standard deviation

Min, Q1, median, Q3, max

Quartile, median, mode, range, mean

Mean, range, variance, quartile, mode

Question 26: What is the name of a graphical representation showing the median, quartiles, and range of a dataset?

Histogram

Pie chart

Box plot

Dot plot

Question 27: In a box plot, what part represents the interquartile range (IQR)?

The whiskers

The central box

The line outside the box

The minimum and maximum points

Question 28: Which term describes a probability based on empirical data collected from experiments?

Theoretical probability

Conditional probability

Empirical probability

Independent probability

Question 29: What is the entire set of possible outcomes in a probability experiment called?

Event

Frequency table

Sample space

Population

Question 30: Which term refers to a subset of a population used in a study?

Sample

Event

Outcome

Population

Question 31: What is the probability that two events both occur when they are independent?

P(A or B) = P(A) + P(B)

P(A and B) = P(A) x P(B)

P(A and B) = P(A) - P(B)

P(A or B) = P(A) x P(B)

Question 32: If two events cannot happen at the same time, what are they called?

Independent

Complementary

Disjoint

Conditional

Question 33: Which principle states that as the number of trials increases, the empirical probability approaches the theoretical probability?

Law of total probability

Central Limit Theorem

Law of large numbers

Multiplication rule

Question 34: A probability that depends on the occurrence of another event is called what?

Empirical probability

Theoretical probability

Conditional probability

Independent probability

Question 35: Which type of data includes numbers that can take any value within a specified range?

Discrete

Continuous

Ordinal

Nominal

Question 36: What is the rule that probability of a single event and its complement adds up to?

0.5

-1

Question 37: Which probability rule is used when events are mutually exclusive?

Addition rule

Multiplication rule

Complement rule

Independence rule

Question 38: What type of chart is used to show the relationship between two categorical variables?

Histogram

Bar chart

Contingency table

Dot plot

Question 39: Which variable in an experiment is considered the cause or explanatory factor?

Response variable

Outcome variable

Explanatory variable

Sample variable

Question 40: Which measure describes how much scores vary from the mean?

Range

Mean

Standard deviation

Mode

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