Mutually Exclusive
Events, Independent Events, Complement Of An Event

Lesson 1 
Problem: One card is drawn from a standard deck of cards. Find the probability of drawing diamond card or a ten card. 
Step 1: Probability of drawing a diamond card, P(A) = 13/52 
Step 2: Probability of drawing a ten, P(B) = 4/52 
Step 3: Probability of drawing a red card or ten =P(A)+P(B)–P(A and B) 
=
13/52 + 4/52 – 1/52

=
16/52

Step 4: 
The answer is: 4/13

Try two practice problems: 
A.  One card is drawn from a standard deck of cards. Find the probability of drawing a spade card or an ace card. 
B.  Drawing a four and drawing a three from a standard deck of cards. Are these events mutually exclusive? 
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