STATISTICS AND PROBABILITY.
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Population - Answer: An entire group of people or objects that you are studying or
observing
Sample - Answer: The part of the population you can use to make an inference, or
conclusion, about a population.
Random Sample - Answer: a subset of the population selected without bias in order to
make inferences about the entire population
Unbiased Sample - Answer: is representative of a population. It is selected at random
and is large enough to provide accurate data.
Biased Sample - Answer: is NOT representative of a population. One or more parts of
the population are favored over others.
Simulation - Answer: An experiment that is designed to reproduce the conditions of a
situation or process. It allow you to study situations that are impractical to create in real
life.
Trial - Answer: a repetition of an experiment
Probability - Answer: a number that measures the likelihood that the event will occur,
between 0 and 1, including 0 and 1. 1 indicates very likely, 0 indicates very unlikely, 0.5
is equally likely
Experimental Probability - Answer: likelihood of possible outcomes based on repeated
trials of an experiment
1
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, Theoretical Probability - Answer: likelihood of possible outcomes of an event as the
ratio of the number of favorable outcomes to the number of possible outcomes.
Event - Answer: A collection of one or more outcomes
Independent Event - Answer: If the occurrence of one event DOES NOT affect the
likelihood that the other events will occur.
Compound Event - Answer: consists of two or more successive outcomes. The
probability of a two or more outcomes occurring is the ratio of the number of favorable
outcomes to the number of possible outcomes.
Dependent Event - Answer: If the occurrence of one event DOES affect the likelihood
that the other event will occur
Outcomes - Answer: The possible results of an experiment
Relative Frequency - Answer: the fraction or percent of the time that the event occurs
Sample Space - Answer: The set of all possible outcomes of one or more events
Fundamental Counting Principle - Answer: An event M has (m) possible outcomes. An
event N has (n) possible outcomes. The total number of outcomes of event M followed
by event N is (m * n) .
Likely - Answer: when the probability of the outcome of an experiment is MORE THAN
50%
Law of Large Numbers - Answer: As the number of experiments increases, the actual
ratio of outcomes will get closer to the theoretical, or expected, ratio of outcomes.
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
Quality content you can rely on!
Population - Answer: An entire group of people or objects that you are studying or
observing
Sample - Answer: The part of the population you can use to make an inference, or
conclusion, about a population.
Random Sample - Answer: a subset of the population selected without bias in order to
make inferences about the entire population
Unbiased Sample - Answer: is representative of a population. It is selected at random
and is large enough to provide accurate data.
Biased Sample - Answer: is NOT representative of a population. One or more parts of
the population are favored over others.
Simulation - Answer: An experiment that is designed to reproduce the conditions of a
situation or process. It allow you to study situations that are impractical to create in real
life.
Trial - Answer: a repetition of an experiment
Probability - Answer: a number that measures the likelihood that the event will occur,
between 0 and 1, including 0 and 1. 1 indicates very likely, 0 indicates very unlikely, 0.5
is equally likely
Experimental Probability - Answer: likelihood of possible outcomes based on repeated
trials of an experiment
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, Theoretical Probability - Answer: likelihood of possible outcomes of an event as the
ratio of the number of favorable outcomes to the number of possible outcomes.
Event - Answer: A collection of one or more outcomes
Independent Event - Answer: If the occurrence of one event DOES NOT affect the
likelihood that the other events will occur.
Compound Event - Answer: consists of two or more successive outcomes. The
probability of a two or more outcomes occurring is the ratio of the number of favorable
outcomes to the number of possible outcomes.
Dependent Event - Answer: If the occurrence of one event DOES affect the likelihood
that the other event will occur
Outcomes - Answer: The possible results of an experiment
Relative Frequency - Answer: the fraction or percent of the time that the event occurs
Sample Space - Answer: The set of all possible outcomes of one or more events
Fundamental Counting Principle - Answer: An event M has (m) possible outcomes. An
event N has (n) possible outcomes. The total number of outcomes of event M followed
by event N is (m * n) .
Likely - Answer: when the probability of the outcome of an experiment is MORE THAN
50%
Law of Large Numbers - Answer: As the number of experiments increases, the actual
ratio of outcomes will get closer to the theoretical, or expected, ratio of outcomes.
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
