
Josh and Soumik each take a coin at random out of their pockets and add the totals together to get an amount. Josh has two coins, a coin, a coin and three coins in his pocket. Soumik has three coins, a coin and three pieces. What is the probability that the coins add up to less than ?


Important Questions on Introduction to Probability
Josh and Soumik each take a coin at random out of their pockets and add the totals together to get an amount. Josh has two coins, a coin, a coin and three coins in his pocket. Soumik has three coins, a coin and three pieces. What is the probability that the coins add up to or more?

A letter is chosen at random from the following word: STATISTICS
Write down the probability that the letter is A or I. (write the answer in fraction)

A letter is chosen at random from the following word: STATISTICS
Write down the probability that the letter is E. (write the answer in fraction)

Omar rolls two fair dice, each numbered from , adds the numbers shown. He repeats the experiment times and records the results in a frequency table.
Total | Tally | Frequency |
Complete the frequency table to show all his results.

Omar rolls two fair dice, each numbered from , adds the numbers shown. He repeats the experiment times and records the results in a frequency table.
Total | Tally | Frequency |
Write down the relative frequency of a total of

One of the six letters is taken at random: SPACES
Write down the probability that the letter is S. (write the answer in fraction)

One of the six letters is taken at random: SPACES
The letter is replaced and again a letter is taken at random. This is repeated times. How many times would you expect the letter to be S?

Kiah plays a game. The game involves throwing a coin onto a circular board. Points are scored for where the coin lands on the board. If the coin lands on part of a line or misses the board then points are scored. The table shows the probabilities of Kiah scoring points on the board with one throw.
Points scored | ||||
Probability |
Find the value of .
