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A)Let S = {1,2,3,...,18,19,20} be the universalset.

Let sets A and B be subsets of S,where:

Set A={3,4,9,10,11,13,18}A={3,4,9,10,11,13,18}

SetB={1,2,4,6,7,10,11,12,15,16,18}B={1,2,4,6,7,10,11,12,15,16,18}

LIST the elements in Set A and Set B:{  }

LIST the elements in Set A or Set B:{  }

B)A ball is drawn randomly from a jar that contains 4 red balls, 5white balls, and 9 yellow balls. Find the probability of the givenevent. Write your answers as reduced fractions or wholenumbers.

(a) PP(A red ball is drawn) =    

(b) PP(The ball drawn is NOT red) =    

(c) PP(A green ball is drawn) =  

C)

As part of a statistics project, a teacher brings a bag ofmarbles containing 700 white marbles and 400 red marbles. She tellsthe students the bag contains 1100 total marbles, and asks herstudents to determine how many red marbles are in the bag withoutcounting them.

A student randomly draws 100 marbles from the bag. Of the 100marbles, 41 are red.

The data collection method can best be described as?

• Census
• Survey or Sample
• Controlled study
• Clinical study

The target population consists of?

• The 1100 marbles in the bag
• The 41 red marbles drawn by the student
• The 100 marbles drawn by the student
• The 400 red marbles in the bag
• None of the above

The sample consists of?

• The 41 red marbles drawn by the student
• The 1100 marbles in the bag
• The 100 marbles drawn by the student
• The 400 red marbles in the bag
• None of the above