Probability
And OR Probability
Reading Two-Way Tables
Probability with Two-Way Tables
100
There are 3 red marbles, 4 black marbles and 2 purple marbles. If you randomly reach inside the bag and choose one marble, what is the probability of getting a black marble?
4/9
100
There are 2 red marbles, 4 blue marbles, 8 pink marbles, and 10 yellow. If you randomly choose a marble what is the probability the marble is blue or pink?
1/2
100
How many people like skateboards and snowmobiles?
80
100
What is the probability that a randomly chosen student eats breakfast and is aged 10 - 13?
40/90
200
If you roll a 6 sided die, what is the probability that you roll a number greater than or equal to 3?
4/6 OR 2/3
200
Students scores were 51, 62, 68, 75, 76, 79, 89, 91, 93, and 94. What's the probability that a randomly selected student got an even score and their score was more than 70?
2/10 = 1/5
200
How many people in total were surveyed?
240
200
What is the probability that a randomly chosen person likes snowmobiles?
105/160
300
A class has 4 boys who play football, 8 boys who play soccer, and 7 boys who don't play a sport. The class also has 1 girl who plays football, 3 girls who play soccer, and 5 girls who don't play sports. If you randomly choose a student from the class, what is the probability that the student doesn't play any sports?
12/28 = 3/7
300
A class has 3 boys who play the sax, 2 boys who play the drums, and 4 boys who don't play an instrument. The class also has 2 girls who play the sax, 1 girls who plays the drums, 3 girls who play the flute, and 5 girls who don't play an instrument.
If you randomly select a girl from the class, what is the probability that she plays the sax or the flute?
5/11
300
How many people in total like football?
42
300
What is the probability that a randomly chosen person likes football and likes chocolate?
10/72
400
A class has 4 boys who play football, 8 boys who play soccer, and 7 boys who don't play a sport. The class also has 1 girl who plays football, 3 girls who play soccer, and 5 girls who don't play sports. If you randomly choose a soccer player, what is the probability that the player is a boy?
8/11
400
What's the probability that a randomly selected person likes snowmobiles and skateboards?
0.5
400
How many people like snowmobiles but do not like skateboards?
25
400
Given a students eats breakfast, what is the probability that they are aged 14-17?
12/47
500
A bag has 30 purple marbles and some yellow marbles. The probability of choosing a purple marble is 2/5 . How many yellow marbles are in the bag?
45
500
What's the probability that a randomly selected student eats breakfast or is a student age 14-17?
76/90 = 38/45
500
How many people like vanilla and like football?
32
500
What is the probability that a person likes chocolate, given that they like soccer?
12/30