Practice Problem 2: Girl or Senior? A local high school has 1400 students; 800 of whom are girls. 300 of the students are seniors; of which 200 are girls. If would choose a girl or a senior? Step 1: List the events. Event A: Choosing student who is a girl + Event B: Choosing a student. + Step 2: Decide if the events are mutually exclusive or not. The events are not mutually exclusive because one student # be a girl and a senior at the same Step 3: Write the correct equation and solve for the probability. The events are not mutually exclusive, so we should use the equation P(A or B) = P(A) + P(B) - P(A and B) = beca How many total students attend the school? 1400 students P(G or S)=P(G) + P(S) - P(G and S) 200 P(G or S) = 800 1400 + 1400 P(G or S) = P(G or S) = The probability of choosing a student who is a girl or a senior is This means that 9 out of ever students is a 14* Check
Practice Problem 2: Girl or Senior? A local high school has 1400 students; 800 of whom are girls. 300 of the students are seniors; of which 200 are girls. If would choose a girl or a senior? Step 1: List the events. Event A: Choosing student who is a girl + Event B: Choosing a student. + Step 2: Decide if the events are mutually exclusive or not. The events are not mutually exclusive because one student # be a girl and a senior at the same Step 3: Write the correct equation and solve for the probability. The events are not mutually exclusive, so we should use the equation P(A or B) = P(A) + P(B) - P(A and B) = beca How many total students attend the school? 1400 students P(G or S)=P(G) + P(S) - P(G and S) 200 P(G or S) = 800 1400 + 1400 P(G or S) = P(G or S) = The probability of choosing a student who is a girl or a senior is This means that 9 out of ever students is a 14* Check
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Practice Problem 2: Girl or Senior?
A local high school has 1400 students; 800 of whom are girls. 300 of the students are seniors; of which 200 are girls. If w
would choose a girl or a senior?
Step 1: List the events.
Event A:
Choosing student who is a girl
Event B:
Choosing a student.
Step 2: Decide if the events are mutually exclusive or not.
The events are not
mutually exclusive because one student
→ be a girl and a senior at the same ti
Step 3: Write the correct equation and solve for the probability.
The events are not mutually exclusive, so we should use the equation P(A or B) = P(A) + P(B) - P(A and B) ⇒ becau
students
How many total students attend the school? 1400
P(G or S) = P(G) + P(S) – P(G and S)
800
200
P(G or S) = 1400
+1
1400
P(G or S) =
P(G or S) = 14
The probability of choosing a student who is a girl or a senior is. This means that 9 out of ever
students is ag
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