a) There are 4 aisle seats in each row of 10 seats. P=104=0.4.
b) There are 11*10 seats in smoking section. P=55∗1011∗10=5511=0.2.
c) There are (55-11)*2 window seats in non-smoking section. P=55∗1044∗2=55088=0.16.
d) There are 2 window seats in row 1. P=5502=2751≈0.0036.
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