Probability
And OR Probability
Reading Two-Way Tables
Probability with Two-Way Tables
Mean & Range
Median
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
100
What is the range of the data?
5, 4, 7, 19, 34, 6, 12
30
100
What is the median for the data?
2, 6, 12, 13, 19
12
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
200
What is the mean of 45, 32, 78, 55, 92, 36, and 64 to the nearest hundredth?
402/7=57.43
200
What is the median of the data?
8, 34, 22, 7, 4
8
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
300
What is the mean age of the patients?
621/18 = 34.5
300
What is the median age for the flu patients below?
34
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
400
Use the frequency table to determine the mean of the prize values?
$5.44
400
What is the median of the data?
300, 51, 74, 210, 183, 63, 86, 310
134.5
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
500
The mean of five data values is 18. If four data values are 12.8, 28.2, 37 and 7.4. What is the final data value?
4.6
500
What is the median number of pets owned by kids in the class?
Number of Pets Frequency
0 3
1 12
2 5
3 4
4 3
5 1
1