Asked by Cassidy
Stacy has a spinner (1-4) and a number cube (1-6). After spinning and rolling the number cube, she will add the two numbers.
What is the probability that the sum of the numbers from the spinner and number cube will be 3 or 4?
What is the probability that the sum of the numbers from the spinner and number cube will be 3 or 4?
Answers
Answered by
bobpursley
ways to get 3 or 4
1,2;
1,3
2,1;
2,2
3,1
probability= 5ways*1/4*1/6=5/24
another way.
prob= prob1,2or3+prob2,1or2, +prob3,1
= 1/4*2/6+1/4*2/6 + 1/4*1/6
=1/4(5/6= 5/24
1,2;
1,3
2,1;
2,2
3,1
probability= 5ways*1/4*1/6=5/24
another way.
prob= prob1,2or3+prob2,1or2, +prob3,1
= 1/4*2/6+1/4*2/6 + 1/4*1/6
=1/4(5/6= 5/24
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