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What's the chance?

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  • Mr. Daniels will wear his tuxedo to the fundraiser. He has two shirts: plain and ruffled. He has three bowties: red, green, blue. Which diagram shows every possible combination for his tux?
    C
  • Which number could represent the probability of an event? 1.25, -2, 2/3, 3/2
    2/3
  • Students played a game matching math facts. The one with the greatest number of matches wins. Out of the cards left, what is the probability the answer will be greater than 50? Write your answer as a percent.
    20%
  • If you toss the coin and spin the spinner, what is the probability of heads and red? Write your answer as a percent.
    12.5%
  • There are 4 green, 3 blue and 2 pink balls in a box. What is the approximate probability of picking out a green ball? 22%, 25%, 44%, 55%
    44%
  • Belinda tossed 52 pennies into the air. What is the best prediction of how many coins landed tails up? 52, 36, 32, 26, 13.
    26
  • Cookie Monster reaches into the cookie jar and gets a chocolate chip cookie. If the probability of drawing a chocolate chip cookie was 4/13, how many cookies could be in the jar?
    13
  • If the spinners are spun at the same time, what is the probability one will land on a primary color and the other on a number less than ten? Write your answer as a fraction.
    7/16
  • What is the probability of tossing 3 heads? Write your answer as a fraction and a percent.
    1/8 = 12.5 percent
  • The probability of choosing a fortune cookie with a positive message is 3 out of 4. Arnold has a box containing 648 fortune cookies. About how many are negative messages? 100, 110, 138, 162, 200
    162
  • The table shows party affiliations for a community with 94 voting adults. If the community represents the town that has an adult population of 9000, about how may are likely Independents? 1150, 1500, 2800, 4000
    1150
  • Joseph buys gum from a gumball machine. The colors are: green, yellow, blue, black, red and white. He buys 84 gumballs. Theoretically, about how many gumballs of each color can he expect to get?
    He will receive about 14 gumballs of each color.
  • If you take a number from this box without looking, what is the probability of not drawing a 3? Write your answer as a percent.
    80%
  • One hundred people who attended a recent concert were classified by age bracket. If 2500 people attended the concert, what would be a good prediction for the number of attendees between 13 and 15 years old? 450, 725, 925, 675, 800
    800
  • Mike is making a sandwich. He can choose white or wheat bread. He can also choose ham, turkey or chicken. Which diagram shows all possible sandwich combinations?
    D
  • A bag of marbles contains 3 different colors. 40 are drawn. The frequency of different colors drawn is shown in the table. Based on the table, what would be the probability of drawing a white marble? Write your answer as a fraction.
    1/8
  • Five cards are shuffled and placed face down. One card is drawn. Find the probability of drawing an even number. Write as a fraction.
    2/5
  • When Abbey gets dressed for work tomorrow, she will choose 1 skirt and one top from the clothes shown. What is the total number of different combinations she can choose? 7, 9, 10, 13
    10
  • A recent student survey revealed 21 out of 30 students prefer swimming over their summer break. If the school has a population of 1200, how may do you predict may enjoy swimming over the summer? 84, 840, 360, 80
    840
  • The likelihood that a certain thing will occur is called a(n): event, probability, sample space, prediction
    Probability
  • Hudson is the star of his high school track team. 80% of the time, he can run a mile under six minutes. What is the probability that he will run his next mile under six minutes? Write your answer as a fraction.
    4/5
  • A bag contains marbles: 4 red, 6, orange, 10 black, 3 yellow. If a marble is drawn at random, what is the probability it will be either orange or yellow? 9/14, 4/23, 9/23, 14/23
    9/23
  • Shante' tossed a fair coin 10 times. The computer generated 200 tosses. The results are shown. For each set compare the Experimental and Theoretical probabilities. Whose results were closer to the Theoretical probability? Why?
    The computer is closer. Fair coin probability is P(H)=50% and :(T)50%.