MEDIUM
Upper Secondary: IGCSE
IMPORTANT
Earn 100

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 $1 coins, a 50c coin, a $5 coin and three 20c coins in his pocket. Soumik has three $5 coins, a $2 coin and three 50c pieces. What is the probability that the coins add up to less than  $2?

50% studentsanswered this correctly

Important Questions on Introduction to Probability

EASY
Upper Secondary: IGCSE
IMPORTANT

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 $1 coins, a 50c coin, a $5 coin and three 20c coins in his pocket. Soumik has three $5 coins, a $2 coin and three 50c pieces. What is the probability that the coins add up to $5 or more?

EASY
Upper Secondary: IGCSE
IMPORTANT

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)

EASY
Upper Secondary: IGCSE
IMPORTANT

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)

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

Omar rolls two fair dice, each numbered from 1 to 6, adds the numbers shown. He repeats the experiment 70 times and records the results in a frequency table.

Total Tally Frequency
2 ||  
3 ||||  
4 |||| ||||  
5 |||  
6 |||| |||| |||| ||  
7 |||| |||| |  
8 |||| ||||  
9 |||| |||  
10 |||  
11 |  
12 |  

Complete the frequency table to show all his results.

MEDIUM
Upper Secondary: IGCSE
IMPORTANT

Omar rolls two fair dice, each numbered from 1 to 6, adds the numbers shown. He repeats the experiment 70 times and records the results in a frequency table.

Total Tally Frequency
2 ||  
3 ||||  
4 |||| ||||  
5 |||  
6 |||| |||| |||| ||  
7 |||| |||| |  
8 |||| ||||  
9 |||| |||  
10 |||  
11 |  
12 |  

Write down the relative frequency of a total of 5.

EASY
Upper Secondary: IGCSE
IMPORTANT

One of the six letters is taken at random: SPACES

Write down the probability that the letter is S. (write the answer in fraction)

EASY
Upper Secondary: IGCSE
IMPORTANT

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 600 times. How many times would you expect the letter to be S?

EASY
Upper Secondary: IGCSE
IMPORTANT

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 0 points are scored. The table shows the probabilities of Kiah scoring points on the board with one throw.

 Question Image 

Points scored 20 10 5 0
Probability x 0.2 0.3 0.45

Find the value of x.