Concept explainers
a)
To explain the difference between disjoint and independent.
a)
Explanation of Solution
Given:
If you draw one M&M, are the events of getting a red one and getting an orange one disjoint, inendependent or neither.
First, we need to understand about disjoint and independent events.
Disjoint events: The events that cannot occur at the same time.
Independent events: Occurrence of one
For one draw, the probability of getting a red M&M and getting an orange M&M are disjoint events. Your single draw cannot both be red and orange.
b)
To explain the difference between disjoint and independent.
b)
Explanation of Solution
Given:
If you draw two M&M's one after the other, are the events of getting a red on the first and a red on the second disjoint, independent, or neither?
First, we need to understand about disjoint and independent events.
Disjoint events: The events that cannot occur at the same time.
Independent events: Occurrence of one event does not affect to the probability of the occurrence of another event.
For two draws, the events of getting a red M&M on the first draw and a red M&M on the second draw are independent. Drawing a red on the first does not influence the probability of drawing a red on the second.
c)
To explain the difference between disjoint and independent.
c)
Explanation of Solution
Given:
Can disjoint events ever be independent?
First, we need to understand about disjoint and independent events.
Disjoint events: The events that cannot occur at the same time.
Independent events: Occurrence of one event does not affect to the probability of the occurrence of another event.
Disjoint events can never be independent. Once you know that one of a pair of disjoint events has occurred, the other one cannot occur, so its probability has become zero.
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Stats: Modeling the World Nasta Edition Grades 9-12
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