One of 10 keys open the door. If we try the keys one after another, then find the following: (i)               The probability that the door is opened on the first attempt. (ii)             The probability that the door is opened on the second attempt. (iii)           The probability that the door is opened on the 10th attempt.

One of the ten available keys opens the door. If we try the keys one after another, then find the following (i) the probability that the door is opened in the first attemt. (ii) the probability tht the door is opened in the second attempt. (iii) the probability that the door is opened in the third attempt. (iv) the probability that the door is opened in the tenth attempt.

If a refrigerator's door is opened , then we get

If the door of a refrigerator is kept open, then which of the following is true

The key for a door is in a bunch of 10 keys. Aman attempts to open the door by trying keys at random discording the wrong key.The probability that the door is opened in fifth trial is

On throw of a die (when players throw the die one by one)(i) Is the probability of getting a 6 by first player more?(ii) Is the probability of getting a 6 by the other two players less ?(iii) If the second player gets 6, then does it mean that the probability of getting 6 by third player is zero?