SOLUTION: Cards are numbered 0-9. The probability to pick the number seven, or any card with a number greater than 6 is: A) 20% B) 10% C) 30% D) 40%

Algebra ->  Probability-and-statistics -> SOLUTION: Cards are numbered 0-9. The probability to pick the number seven, or any card with a number greater than 6 is: A) 20% B) 10% C) 30% D) 40%      Log On


   

Question 1082296: Cards are numbered 0-9. The probability to pick the number seven, or any card with a number greater than 6 is:
A) 20%
B) 10%
C) 30%
D) 40%
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P%28N=7%29=1%2F10
P%28N%3E6%29=3%2F10
P%28N%3E6_and_N=7%29=1%2F10
So putting it all together,
P=1%2F10%2B3%2F10-1%2F10
P=3%2F10