Probability I
A bag has 5 reds, 3 blues, and 3 greens. What's the probability you select a red? (Fraction or Percent)
5/11
45%
Person A and B play rock, paper, scissors. Person A could win, Person B could win, and they could tie. They play 50 times. Person A won 20 times, Person B won 20 times, and they tied 10 times. What's the theoretical probability they tie? (Fraction or Percent)
1/3 or 33%
There is a 50% chance of snow in the forecast. Describe the likelihood of snow.
It is equally likely for snow to happen or not.
You flip a coin two times. What's the probability it lands on heads both times? (Fraction and Percent)
1/4
25%
A bag of marbles contains 4 red 6 blue 5 green and 5 purple. A marble is drawn at random and then put back in the bag. What is my probability of pulling a red marble and then a blue marble?
3/50
A bag has 5 reds, 3 blues, and 3 greens. What's the probability you select a green or blue? (Fraction or Percent)
6/11
54%
Person A and B play rock, paper, scissors. Person A could win, Person B could win, and they could tie. They play 50 times. Person A won 20 times, Person B won 20 times, and they tied 10 times. What's the experimental probability they tie? (Fraction or Percent)
10/50=1/5
20%
You roll a 6-sided die. What's the probability you roll an odd number? (Fraction or Percent)
3/6=1/2
50%
You flip a coin and roll a 6 sided die. What's the probability you flip tails and roll a 4? (Fraction and Percent)
1/12
A bag of marbles contains 4 red 6 blue 5 green and 5 purple. A marble is drawn at random and then put back in the bag. What is my probability of pulling a purple marble and then not a blue marble?
7/40
A bag has 5 reds, 3 blues, and 3 greens. What's the probability you select not blue? (Fraction or Percent)
8/11
73%
Person A and B play rock, paper, scissors. Person A could win, Person B could win, and they could tie. How many times do you expect them to tie if they play 300 times?
100
An ice cream store sells sundaes. You can choose between strawberry, chocolate, or vanilla ice cream. You can add bananas, fresh strawberries, or chocolate sauce. You can top it off with sprinkles, chopped nuts, chocolate chips, or pop rocks. How many different combinations are possible?
36
Evan could order McDonald's, Burger King, or Wendy's. He could get a coke, sprite, or water. He also could get a hamburger, chicken tenders, or a salad. What's the probability he gets McDonald's, a coke, and chicken tenders? How many total choices does he have?
1/27
27
A bag of marbles contains 4 red 6 blue 5 green and 5 purple. A marble is drawn at random and then set aside. What is my probability of pulling a green marble and then a red marble?
1/19
A bag has 5 reds, 3 blues, and 3 greens. You reach in and pull out a red. Now, what's the probability you either red or blue? (Fraction or Percent)
8/10=4/5
80%
Person A and B play rock, paper, scissors. They play 50 times. Person A won 20 times, Person B won 20 times, and they tied 10 times. Based on the data, how often do you expect them to tie if they play 300 games?
60
90
Ivy makes 3 point shots 33% of the time (1/3). That means he misses 67% of the time (2/3). What's the probability that he makes two shots in a row? Then what's the probability he misses two shots in a row? (Fraction and Percent)
1/9 or 11%
4/9 or 44%
A bag of marbles contains 4 red 6 blue 5 green and 5 purple. A marble is drawn at random and then set aside. What is my probability of pulling 2 blue marbles?
3/38
A bag has 5 reds, 3 blues, and 3 greens. Say you pulled a marble 110 times. How often would you expect to get a green marble?
30
Person A and B play rock, paper, scissors. Person A won 20 times, Person B won 20 times, and they tied 10 times. Based on the data, how often do you expect Person A to win if they play 300 games?
120
You flip a coin 10 times. How many possible outcomes are there?
1,024
Nolan makes 3 point shots 33% of the time (1/3). That means he misses 67% of the time (2/3). What's the probability that he first makes a shot and then misses a shot? (Fraction and Percent)
2/9
22%
Guy has 9 white socks and 11 black socks in his sock drawer. He grabs 2 socks randomly. what is the probability guy is not wearing matching socks?
99/190