Quiz # 4 -Quarter 3 - Form C

1. Determine whether the strategy described results in a fair decision. Explain. (2 marks)

A talk show host wants to choose 5 audience members at random to receive prizes. There are 200 numbered seats in the audience, and all seats are filled. The host has a jar holding 200 balls numbered 1 to 200. She takes 5 balls from the jar without looking and calls out the seat numbers. The people in those seats receive prizes.

Use the random number line below. (3marks)

A fast moving consumer goods company wants to send random prizes to its customers. They will choose 4 from the 50 names on the first page. Each name is assigned a two digit number from 01 to 50 . Based on the line of the random number table below, what are the numbers of the customers who will receive the prize?

79577 01104 76390 49032 91662 36151 59491 03051 45469 24460

. Describe a simulation. .(3 marks)

There are 4 students on a Science Fair team. They need to choose one student from their team to present their project . Describe a simulation that the students can use to make a fair decision.

1. What is the probability that a student received less than an B given that he or she did not use the quiz software?

2. What is the probability that a student received an A or a B given that he or she did used the quiz software?

3. A school decides to purchase the quiz software for all of its algebra students. Is this a good decision? Explain.

4. Use a tree diagram to solve the following problem. .(4 marks)

The senior class is 55% female, and 32% of the class are females who play a competitive sport. 25% of the males play a competitive sport. What is the probability that a student is a male and does not play a competitive sport? ( DRAW TREE DIAGRAM)

6. Using two -way tables to find conditional probability.(6 marks)

1. P(male | basketball) 2.P(soccer |female ) 3. P (basketball)