Entry Task 1'1 18

1

• Entry Task 1.1 1/8
• 1) Robert is preparing for his final and he wants
  to know what he needs to get on his final to get
  at least an A- in the class. The quizzes make up
  half of his grade and the final makes up the
  other half of his grade. From the first quiz to
  the last his grades are as follows 97, 95, 85,
  72, 80, 85 and 95.
• a) What is the average of Roberts quizzes?
• b) What does he need on his final to get a 90 or
  above? (Remember His total grade is half his
  quiz grade plus half the grade of is his final.)
• c) Graph the quiz scores so that Robert can see
  his progress throughout the quarter? (Would a
  number line show his progress throughout the
  quarter?)
• d) Can you tell the score given the quiz ? Can
  you tell the quiz given the score?
• 2) Create a Venn Diagram of the real s and
  give an example of each of the sets
• Is 7.5 a rational ?
• Is 3.333333 an irrational ?
• What sets is the zero in?