Order of Operations
Probability
Two-Step Equations
Inequalities
Biased-Unbiased Samples
100
2 ( 5 + 2 ) + 3 X 6
What is 61.
100
Billy has 6 dvd's, 9 cd's, 5 cassette tapes in a plastic bag. If Billy were to reach in the bag without looking, what would the probability be that Billy would pull out a cassette tape?
What is 1/4.
100
4y + 2 = 22
What is y = 5
100
6y + 9 < 39
What is y < 5
100
Sally was taking a poll at school, she is trying to figure out the 6th grade classes favorite soft drink. If Sally only polled the boys basketball team, would he sample be biased or unbiased? Please explain your answer.
What is a biased sample. Because she only polled the boys basketball team.
200
54 − (10 + 18)
What is 26.
200
Sarah has 8 green dresses, 5 blue dresses, 2 black dresses, and 10 white dresses in her closest. If Sarah were to pull out a dress from her closet without looking, what would the probability be that she would pull out a WHITE dress?
What is 2/5 ?
200
8m - 3 = 45
What is m = 6
200
7x - 4 ≤ 52
What is x ≤ 8.
200
Penny is wanting to take a poll at her middle school on the students favorite candy bar. Penny polled every other student in each grade level to get her results. Is Penny's poll biased or unbiased. Please explain your answer.
What is unbiased. Because she polled every other person in each grade level. She did not target one specific group of people.
300
6 (18 −3) + (4×20)
What is 170.
300
Jeff has 4 basketball, 9 tennis balls, 3 baseballs , and 6 soccer balls in his toy chest. What is the probability that Jeff would pull out a tennis ball or a baseball from the chest?
What is 1/2.
300
Solve the following equation: 3x + 5 = 23
What is x = 6
300
2m - 8 > 6
What is m > 7.
300
Tommy Two Gloves is taking a poll on people and their favorite college football teams. Tommy went to a UT game to ask people the question for his poll. Would Tommy's poll be biased or unbiased. Please explain why.
What is biased. Because people at a UT game are more than likely going to say UT.
400
2 3 X 4 - ( 7 X 2 )
What is 22.
400
Summer has 3 red ribbons, 5 blue ribbons, 4 black ribbons, and 9 white ribbons in a bag. What would the probability be that Summer would pick a red or black ribbon out the bag without looking?
What is 1/3.
400
9y - 4 = 41
What is y = 5
400
8r + 4 > 76 -
What is r > 9. -
400
Amanda wants to know how many people in 8th grade own a dog. Amanda only asked one homeroom class to get her results, would Amanda's poll be biased or unbiased. Please explain your answer.
What is biased. Because she only asked people in one homeroom class. There are 8 homerooms in 8th grade. This poll would not be accurate.
500
2 ( 8 + 3 ) X ( 9 - 2 )
What is 539.
500
Corey has 10 blue powerade's, 6 green powerade's, and 8 orange powerade's in his fridge. What is the probability that Corey would pull out a blue powerade without looking?
What is 5/12.
500
12q + 15 = 39
What is q = 2
500
5y + 8 < 23
What is y < 3.
500
Coach C is the basketball coach at a local high school. When Coach C was choosing his team, he only chose players who were over 6 feet tall and could dribble through their legs. Is this sample biased or unbiased. Please explain your answer.
What is biased. Because he only chose players over six feet tall and who could dribble a certain way.
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