Questions Q1. Abid is waiting for a bus. The probability that his bus will be early is 0.2 The probability that his bus will be on time is 0.7 Work out the probability that his bus will be either early or on time. .............................................................................................................................................. (Total for question = 2 marks) Q2. A box contains four different kinds of chocolates. Debbie takes at random a chocolate from the box. The table shows the probability of Debbie taking an Orange or a Coffee or a Caramel chocolate. (a) Work out the probability that Debbie takes a Strawberry chocolate. ............................................................ (2) (b) Work out the probability that Debbie takes an Orange chocolate or a Coffee chocolate. ............................................................ (2) (Total for question = 4 marks) Q3. Every morning, Samath has one glass of fruit juice with his breakfast. He chooses at random orange juice or pineapple juice or mango juice. The probability that he chooses orange juice is 0.6 The probability that he chooses pineapple juice is 0.3 (a) Work out the probability that he chooses mango juice. ............................................................ (2) (b) There are 30 days in April. Work out an estimate for the number of days in April on which Samath chooses orange juice. ............................................................ (2) (Total for question = 4 marks) Q4.
Transcript
Questions Q1.
Abid is waiting for a bus. The probability that his bus will be early is 0.2 The probability that his bus will be on time is 0.7 Work out the probability that his bus will be either early or on time.
A box contains four different kinds of chocolates. Debbie takes at random a chocolate from the box. The table shows the probability of Debbie taking an Orange or a Coffee or a Caramel chocolate.
(a) Work out the probability that Debbie takes a Strawberry chocolate.
Every morning, Samath has one glass of fruit juice with his breakfast. He chooses at random orange juice or pineapple juice or mango juice. The probability that he chooses orange juice is 0.6 The probability that he chooses pineapple juice is 0.3 (a) Work out the probability that he chooses mango juice.
(d) The number of candidates from Spain was 727 Draw a bar on the bar chart to show this information.
(1)
(Total for question = 4 marks) Q5.
Ben throws a dice 20 times. He records the score for each throw. Here are his scores.
(a) Complete the frequency table for his scores.
(2)
(b) Write down the mode of his scores. ...........................................................
(1)
(c) Find the range of his scores. ...........................................................
(1)
Ben throws the dice again.
(d) Draw a circle around the word in the box that best describes the likelihood that his score will be 6.
(1)
(Total for question = 5 marks) Q6.
Here are two bags A and B. Each bag contains 3 discs. Each disc has a number on it.
Anton takes, at random, a disc from bag A and a disc from bag B. His score is the sum of the numbers on these two discs. (a) Complete the table to show all his possible scores.
(2)
(b) Find the probability that his score is 7 ........................................................... (2)
(Total for question = 4 marks)
Q7.
The table shows the number of goals scored for a football team by each of four players during part of a football season.
(a) On the grid, draw a bar chart to show this information.
(3)
(b) Work out the mean of the numbers of goals scored by these players.
(b) Which tourist attraction had 4.4 million visitors? ...........................................................
(1) (c) In 2008, the Natural History Museum had 3.7 million visitors. Draw a bar on the bar chart to show this information.
(1) (d) The number of visitors to one of these tourist attractions was equal to the sum of the number of visitors to the Science Museum and the number of visitors to the Tower of London.
