Terminology · Exercise 1
In a particular college class, there are male and female students. Some students have long hair and some students have short hair. Write the symbols for the probabilities of the events for parts A through J of this question. Note that you cannot find numerical answers here. You were not given enough information to find any probability values yet; concentrate on understanding the symbols.
• Let F be the event that a student is female.
• Let M be the event that a student is male.
• Let S be the event that a student has short hair.
• Let L be the event that a student has long hair.
(a) The probability that a student does not have long hair.
(b) The probability that a student is male or has short hair.
(c) The probability that a student is female and has long hair.
(d) The probability that a student is male, given that the student has long hair.
(e) The probability that a student has long hair, given that the student is male.
(f) Of all female students, the probability that a student has short hair.
(g) Of all students with long hair, the probability that a student is female.
(h) The probability that a student is female or has long hair.
(i) The probability that a randomly selected student is a male student with short hair.
(j) The probability that a student is female.
OpenStax, Statistics · §3.1 Terminology · Exercise 1
No hints for this one.
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