Welcome Pick up your Math Notebook' Todays Brainteaser:

1
Welcome! Pick up your Math Notebook. Todays
Brainteaser

• A man is wearing black. Black shoes, socks,
  trousers, coat, gloves and ski mask. He is
  walking down a back street with all the street
  lamps off. A black car is coming towards him with
  its light off but somehow manages to stop in
  time. How did the driver see the man?

2
Quiz 1.1 Use your notes!

• Identify the sampling method used in each
  situation.
• The first name on each page of a telephone book
  is used for a sample.
• The names of all the people in a club are put in
  a box. Ten names are drawn.
• You ask five friends to name their favorite
  sport.
• People in six cities are interviewed after they
  leave a new movie.

3
Quiz 1.1 Use your notes!

• Fill in the blanks Its convenient to ask
  people ______ to me or my ______.
• BonusSomebody conducts a survey using the method
  below. Explain why the conclusion would be
  biased.
• Survey People in a ticket line for Threat of the
  Martians are asked about their favorite type of
  movie.
• Conclusion Most people like science fiction
  movies best.