Answer
$A\cap B$
1
Work Step by Step
$A$: the red die shows 1.
$B$: the numbers add to 4.
The red die shows 1 AND the numbers add to 4: $A\cap B$
$A\cap B=${(1,3)}
$n(A\cap B)=1$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 7 - Section 7.1 - Sample Spaces and Events - Exercises - Page 456: 23
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