Sub: Statistics Topic: Chi-square Distribution
Test whether the two variables are independent
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A random sample of 70 students is taken to investigate the Association between gender and
residency status. Based on these two attributes, the 70 students are cross classified into
the following contingency table:
In State Out of State Totals
Male 13 19 32
Female 26 12 38
Totals 39 31 70
-If a student is randomly selected what is the probability that the student is male and from
out of state?
Probability that a randomly selected student is male and from out of state: