WorksheetsModule 15 review - probability, making predictions
Total questions: 12
Worksheet time: 10mins
Lanie is buying a new kite. There are 5 red, 6 blue, 9 green, and 4 orange kites in the bin at the store. If each choice is equally likely, what is the theoretical probability that Lanie buys a blue kite?
1/4
1/3
3/4
4/1
Tyrone rolls a fair six-sided number cube, rolls it again, and then flips a fair coin. Which outcome is part of the sample space?
heads, tails, heads
roll 5, heads, tails
1, 2, 4
6, 3, heads
A shop owner finds that 20% of his customers pay with cash and the rest pay with a credit card. Which method could be used to simulate the different types of payment? Select all of the simulation methods that could be used to model this event.
a fair coin
A fair 6-sided number cube
a spinner with 5 equal sections
a spinner with 10 equal sections
a set of 75 chips in which 15 chips are black and the remainder are red
The probability of Marco’s mail being delivered early is 51 . In 300 days of mail delivery, how can Marco figure out how many times Marco expect to get his mail early?
300÷51
51⋅300
51÷300
5⋅300
A disc jockey plays a variety of music at public events. Each hour she plays 2 classic rock songs, 6 bluegrass songs, 5 popular songs, and 2 rap songs. What is the probability that the first song played will be a bluegrass song written as a percent?
(a)
Daria chooses a paint color from 5 shades of blue, 2 shades of yellow, and 2 shades of purple to paint her room. She can choose either carpet or wood flooring. What is the probability of her choosing a shade of blue and carpet? (written as a simplified fraction)
(a)
Which spinner gives a better chance of success for the event: "Spinning any letter except C"?
Spinner 1
Spinner 2
Neither one can have a success
Both - they are equally likely
There are 7 red cards, 6 blue cards, 8 purple cards, and 4 green cards in a hat. In a trial, a card is drawn from the hat and then replaced 1,250 times. How many times is a blue card drawn?
6 times
25 times
50 times
300 times
Select the situation with a 31 probability of randomly selecting a blue marble from a bag.
A bag containing 1 white, 4 red, 3 blue, 2 green, and 4 black marbles
A bag containing 2 white, 6 red, 8 blue, 5 green, and 5 black marbles
A bag containing 3 white, 2 red, 5 blue, 3 green, and 2 black marbles
A bag containing 3 white, 3 red, 3 blue, 3 green, and 3 black marbles
4 white, 7 blue, and 8 yellow. You choose one counter at random. Which color are you least likely to choose?
