The probability of rolling the die once to get a four is 1/6
So we do 1/6*1/6*1/6 which is 1/216 since it's combined probabilities
Hope this helped
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
n(A) only =15-4=11
n(B) only=9-4=5
n(A n B)=4
n(A U B)=11+5+4=20
income =$1200
expenditure=$450
saving=$1200-$450
=$750
ratio of income to expenditure is 1200:450
=8:3
ratio of savings to income is 750:1200
=5:8
hope it helps
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