FORMULAS
addition rule for disjoint event
what is P (A u B)=P(A)+P(B)?
probability of choosing a female
what is .17?
Find P (survived|second class)
what is 0.3602?
Find the probability that a randomly selected student took statistics.
what is .5789?
FREE SPOT!!!
what is 100?
what is (A u B)= P(A)+ P(B)-P(A n B)?
probability of choosing a democrat
what is 0.6?
If the person selected survived, what's the probability that he or she was a third-class passenger?
what is 0.3416?
Construct a Venn diagram that models the chance process using the event R: is a Republican, and F: in female.
what is intersection A n B?
complement rule
P(A) = 1 - P(A’)
P(A|B)=P(B|A)*P(A)/P(B)
what is conditional probability formula?
probability of choosing a female democrat
what is 0.2167?
Given that the person selected was in first class, what's the probability that he or she survived
what is 0.6172?
Find the probability that the students is from Dade given they took statistics.
what is .1779?
P(A ∩ B) = P(A) * P(B)
what is multiplication when A and B are independent?
cannot be independent because the events have no common outcome, meaning if one occurred the other didn't
what is disjoint?
Find P(R ∪ F)
what is 0.53?
Find P(survived)
what is 0.3661?
Find P(Rc∩Fc)
what is .49?
multiplication rule
FREE SPOT!!!
what is 500?
probability of choosing a female or a democrat
what is .64?
Determine whether the events "survived" and "second class" are independent. Explain your reasoning.
What is the events are dependent? Knowing whether a person is in second class affects the likelihood of survival, indicating a dependency between the two events.
Are being from Broward and taking calculus mutually exclusive. Explain.
What is naturally exclusive? In this case, a student cannot be both from Broward and taking calculus because it is stated that no students were planning to take both AP courses. This implies that if a student is from Broward, they must be taking either statistics or neither of the AP courses, but not calculus.
nonindependent multiplication rule
what is P(A)*P(B|A)