[" A car is parked by an owner amongst "25" cars "],[" in a row not at the two extremes.On his "],[" return,he find that exactly "15" places are still "],[" occupied.The probability that both the "],[" neighbouring places are vacant is "]

A car is parked by an owner amongst 25 cars in a row, not at either end. On his return he finds that exactly 15 places are still occupied. The probability that both the neighboring places are empty is

A car is parked by an owner amongst 25 cars in a row, not at either end. On his return he finds that exactly 15 places are still occupied. The probability that both the neighboring places are empty is

A car is parked by an owner amongst 25 cars in a row, not at either end. On his return he finds that exactly 15 places are still occupied. The probability that both the neighboring places are empty is

A car is parked among 'N' cars in a row, not at either end. On his return, the owner finds that exactly 'r' of the 'N' places are still occupied. What is the probability that both neighbouring places are empty ?

A car is parked among N cars standing in a row, but at either end. On his return, the owner finds that exactly r of the N places are still occupied. The probability that both the places neighboring his car are empty is

A car is parked among N cars standing in a row but not at either end. On his return, the owner finds that exactly r of the N places are still occupied. What is the probability that both the places neighbouring his car are empty?

A car is parked among N cars standing in a row but not at either end. On his return, the owner finds that exactly r of the N places are still occupied. What is the probability that both the places neighbouring his car are empty?

A car is parked among N cars standing in a row, but not at either end. On his return, the owner finds that exactly ''r'' of the N places are still occupied. The probability that the places neighboring his car are empty is

A car is parked among N cars standing in a row, but not at either end. On his return, the owner finds that exactly "r" of the N places are still occupied. The probability that the places neighboring his car are empty is ((r-1)!)/((N-1)!) b. ((r-1)!(N-r)!)/((N-1)!) c. ((N-r)(N-r-1))/((N-1)(N+2)) d. (^(N-r)C_2)/(^(N-1)C_2)

A car is parked among N cars standing in a row, but not at either end. On his return, the owner finds that exactly "r" of the N places are still occupied. The probability that the places neighboring his car are empty is a. ((r-1)!)/((N-1)!) b. ((r-1)!(N-r)!)/((N-1)!) c. ((N-r)(N-r-1))/((N-1)(N+2)) d. "^((N-r)C_2)/(.^(N-1)C_2)