a class has 15 boys and 16 girls. what is the probability that a boy's name is drawn at random? 15/31 16/31 15/16 16/15
15 boys and 16 girls....total is (15 + 16) = 31
probability that a boys name is drawn : boys/total ppl = 15/31
Answer:
The answer is \(\frac{15}{31}\)
Step-by-step explanation:
In order to determine the probability, we have to know the classical probability.
Classical probability is a simple form of probability that has equal odds of something happening. The probability of a simple event happening is the number of times the event can happen, divided by the number of possible events.
Given:
A=amount of favorable outcomes
B=amount of possible outcomes
E=event
\(P(E)=\frac{A}{B}\)
So that, we have to determine:
the amount of possible outcomes:
B=15 boys + 16 girls =31
the amount of favorable outcomes:
A=15 boys
E= boy's name is drawn at random event
\(P(E)=\frac{15}{31}\)
Finally, the answer is \(\frac{15}{31}\)