10 Questions
| Total Attempts: 43

Miscellanous probability questions

Questions and Answers

- 1.In a group of 50 students, 10 play both football and cricket, 20 play only football and 15 do not play either. What are the values of
*a*,*b*,*c*and*d*in the Venn diagram?a = [Blank]b = [Blank]c = [Blank]d = [Blank] - 2.Two fair six-sided dice are rolled and the two scores are multiplied. What is the probability that the product of the scores is an even number?(Give your answer as a percentage)
- 3.A spinner has 8 equal sections: 3 are red, 4 are blue and 1 is yellow. The spinner is spun twice.What is the probability of getting a red on the first spin and a blue on the second spin?(Give the exact answer as a percentage)
- 4.A counter is removed from a bag and then replaced before a second counter is removed. Use the tree diagram to find the probability that two black counters are removed.(Give your answer as a percentage)
- 5.Use the Venn diagram to calculate P(A│B).P(A│B) means P(A given B)(Give your answer as a decimal number)
- 6.The two-way table shows the number of left-handed and right-handed boys and girls in a class.One boy and one girl are chosen at random from the class. What is the probability that both the boy and the girl are left-handed? ......................%
- 7.A survey is done in a junior school and it is found that 45 of the 90 boys and 33 of the 110 girls cycle to school.Find the values for
*a*,*b*,*c*,*d*,*e*,*f*in the tree diagram. Type your answers as decimals in the gaps below.a = [Blank]b = [Blank]c = [Blank]d = [Blank]e = [Blank]f = [Blank] - 8.The table shows the numbers of year 10 and year 11 students who attend a science club. Calculate the probabilities below and answer using percentages. P(a student chosen at random is a girl) = [Blank]%P(a boy chosen at random is in year 10) = [Blank]%
- 9.A teacher chooses 1 boy and 1 girl from her class for an experiment. The tree diagram shows the probabilities that they are left- or right-handed. What is the probability that one of the students she picks is left-handed and the other is right-handed?(Give your answer as a decimal number)
- 10.Set T = the first ten multiples of 2.Set F = the first ten multiples of 3.Give the set T∩F, listing the elements in ascending order: T∩F = {[Blank],[Blank],[Blank]}