No of people not from their neighborhood=25-20=5
total contact s=25
therefore probability to call a person not from his neighborhood=5/25=1/5
therefore P=1/5
Answer:
a
Step-by-step explanation:
4*1/7
60%
I pretty sure this is right
Answer: 1
Step-by-step explanation:
3 copies of 1/3 would be 1/3+1/3+1/3= 1
Second one
<span>7/21
Hope it helps
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