Vocabulary
A measure of how likely it is that some event will occur
Probability
What is the formula used to calculate conditional probability
P(A|B) = P(B)
What is the formula used for the addition rule in probability?
P(A and B) = P(A) + P(B)
What is the formula used for the multiplication rule in probability
P(A or B) = P(A) x P(B)
What is the probability of throwing a prime number on a six sided die?
1/2
The total number of outcomes in a given event
Sample Space
P(S | N)
8/29
the probability of selecting a freshman or a doctor.
19/50
Are the events Nurse and Juniors Mutually exclusive
How many students were surveyed?
100
One way of representing probability
Fractions or Percentage or Decimal
the probability of selecting freshman given that they are doctors
4/15
P(N or J)
3/5
P(T and P)
147/2000
What is the probability that the sum is 7 from the roll of a pair of six sided die?
6/36 = 1/6
Two events that can NOT occur at the same time
Mutually Exclusive Events
Are the events Sophomore and Freshman independent?
Yes
the probability of selecting a Freshman or a Junior.
27/50
the probability of selecting a Junior and a Nurse
3/25
What is the total sample space for the toss of two coins and the roll of a six sided die?
2 x 2 x 6 = 24
How do you tell if two events are independent?
1. Wen the probability of one event does not affect the probability of the second event.
2. If P(A|B) = P(A)
the probability of selecting a pilot given that a junior was first chosen
7/31
P(T or P or N)
79/100
the probability of selecting a freshman and a doctor.
1/25
What does the number '10' represent in the table?
The number of Juniors that wants to become a Doctor