Keywords
What's the list of possible outcomes in an experiment?
Sample Space
What is the probability of choosing a vowel from the alphabet? (Vowels are the letters: a, e, i, o, u)
5/26
A spinner has 4 equal sectors colored yellow, blue, green, and red. After spinning the spinner, what is the probability of landing on each color?
1/4
A bag has 3 green, 2 red, 5 purple, 10 white and 5 black marbles. What is the probability of choosing a black ball?
a. 1/3 b. 5/25 c. 1/5 d. 5/10
c. 1/5
The number 3 in sample space {1, 2, 3, 4, 5, 6} is an example of a?
Sample Point
A number from 1 to 11 is chosen at random. What is the probability of choosing an odd number?
6/11
A large basket of fruits contains 8 oranges, 12 apples, and 8 bananas. If a piece of fruit is chosen at random, what is the probability of getting an orange? A banana?
8/28 for both
A box of 20 bulbs contain 4 defective ones. One bulb is drawn at random from the box. What is the probability that this bulb is defective?
a. 1/5 b. 4/20 c. 8/20 d. 4
a. 1/5
When you're looking at only the girls in a two-child family, that is an example of?
An event
Suppose there are 10 balls in a bucket numbered as follows: 1, 1, 2, 3, 4, 4, 4, 5, 6, and 6. A single ball is randomly chosen from the bucket. What is the probability of drawing a ball with a number greater than 6?
0 hehe
The numbers 1 to 10 are written on separate pieces of paper, folded and put in a box. One number (piece of paper) is drawn from this box. What is the probability that this number chosen randomly is 3?
1/10
At a Middle School, 7 out of 10 students make honor roll. What is the probability that a student does not make honor roll?
a. 7/10 b. 1/5 c. 3/7 d. 3/10
d. 3/10