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WorksheetsProbability Review
Total questions: 20
Worksheet time: 39mins
Carlos was packing care packages to send to schools in Afghanistan. The table shown groups the school supplies in 3 different categories. Carlos has to put one item from each group in each box to send to Afghanistan.
Which expression should Carlos use to find the total possible number of different combinations of care packages he can make?
2 x 3 x 4
2 + 3 + 4
2 x 4 + 3
2 + 4 +3 x 3
In a bag, there are 5 gray marbles, 8 black marbles, and 1 white marble. If Carrie draws a marble from the bag without looking, which statement is true about the probability of drawing a black marble?
The probability of drawing a black marble is closer to 1 than it is to 0.
The probability of drawing a black marble is closer to 0 than it is to 1.
The probability of drawing a black marble is 6/14.
The probability of drawing a black marble is 8/6.
A weather station's records show that the forecast for 180 of the past 225 days was correct. What is the relative frequency (experimental probability) that the forecast would NOT be correct on a given day?
20%
25%
50%
80%
The state governor is scheduled to visit Edwards Middle School. One student will be randomly selected to give the governor a tour of the school. The number of students in each grade level at the school is listed in the table.
What is the probability the student selected is in the 7th grade?
1/2
1/3
1/20
1/30
3/5
1/5
3/7
3/8
Jordan has a bag of marbles and a spinner. The bag of marbles has 10 marbles in it, 6 of which are red. The spinner is divided into 4 equal sections: blue, green, red, and yellow.
What is the probability Jordan will pick a red marble out of the bag and land on the red section of the spinner?
60%
40%
25%
15%
Lorna is reading a book with 120 pages. There are five chapters in the book/ The table shows how many pages are in each chapter.
If Lorna opens the book without looking, what is the probability she will open to a page in Chapter 5?
1/20
1/6
1/5
1/4
Pedro is conducting an experiment. He is flipping a fair coin and recording how many times it lands on heads and how many times it lands on tails.
Which statement regarding the experimental and theoretical probability is true?
The experimental probability should get closer to the theoretical probability as Pedro conducts more experiments.
The experimental probability should get further from the theoretical probability as Pedro conducts more experiments.
The experimental probability should stay the same distance from the theoretical probability as Pedro conducts more experiments.
The number of experiments Pedro conducts will not affect the experimental probability.
22%
31%
44%
63%
3/4
1/4
13/60
11/60
15
12
8
5
The letters A, B, D, and R are written on an index card and put into a hat.
If each letter is drawn randomly without replacement, what is the probability of drawing the letters B-R-A-D in that order?
1/4
1/12
1/24
1/36
A box contains 5 red marbles, 8 white marbles, and 4 green marbles. One marble is taken out of the box at random.
What is the probability the marble taken out will NOT be green?
4/17, unlikely
4/17, likely
13/17, unlikely
13/17, likely
What is the probability that Teresa's sandwich will be made with turkey, provolone, and mustard?
1/60
1/30
1/15
1/17
A fair coin was flipped 50 times. It landed on heads 29 times.
What is the experimental probability that the coin will land on tails?
58%
50%
42%
29%
What is the theoretical probability that Luis will land in the green section of his 101st spin?
14%
20%
25%
29%
Which word best describes the likelihood that Orb will win the race?
impossible
unlikely
likely
definitely
1
2
5
10
1/2
1
2
10
Mikayla rolls a six-sided number cube 1,200 times. Which statement is true?
Mikayla will roll a 3 exactly 200 times.
Mikayla will roll a 3 roughly 200 times but probably not exactly 200 times.
Mikayla will roll an even number exactly 400 times.
Mikayla will roll an even number roughly 400 times but not exactly 400 times.
