What percentage of observation lie outside interquartile range of any distribution?
A bag contains 3 red, 4 black and 5 green identical balls. Two balls are picked at random, one after the other without replacement. Find the probability that one is red and the other is green
The table gives the distribution of outcomes obtained when a die was rolled 100 times.
What is the experimental probability that it shows at most 4 when rolled again?