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Bell Work. 100 people were surveyed for their favorite fast-food restaurant . Write your answers as fractions in simplest form. 1. What is the probability that a person likes Wendy’s? 2. What is the probability that a person picked is a male?

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Bell Work

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Bell work

Bell Work

  • 100 people were surveyed for their favorite fast-food restaurant. Write your answers as fractions in simplest form.

  • 1. What is the probability that a person likes Wendy’s?

  • 2. What is the probability that a person picked is a male?

  • 3. What is the probability that a person likes McDonald’s or Burger King?

35/100=7/20

45/100 = 9/20

65/100 = 13/20


Is this independent or dependent

Is this independent or dependent?

  • If we toss two coins, what is the probability of getting two heads? Make a tree diagram.

  • What is the probability if getting at least one tails?

¼

3/4


Bell work

  • A box contains three glazed doughnuts, four jelly doughnuts and five chocolate doughnuts. If a person selects a doughnut at random, find the probability that it is either a glazed doughnut or a chocolate doughnut.

    P(glazed or chocolate) = P(glazed) + P(chocolate)

    = (3/12) + (5/12) = 8/12=2/3


Bell work

You pick a crayon from a box with choice of red, yellow, or blue. What isthe probability of picking a red crayon and rolling a 5? This can be illustrated using a tree diagram to get a better understanding.

=


Bell work

Karen spun a spinner 50 times and recorded her results in the table below. The spinner had five numbered sections.

What is the theoretical probability of landing on a 1?

What is the theoretical probability of landing on an even number?

What is the experimental probability of landing on a 2?


Bell work

  • Skills Check!

    When you finish turn your paper over, put it in the corner of your desk.

For Fun:

Challenge probability worksheet


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