Probability
What is the probability of rolling a number less than 5 when rolling a dice?
2/3
Sally has a choice of 3 types of sandals in 5 colors. How many possible sandals are possible?
15
Two number cubes are rolled. What is the probability that both number cubes will land on a 4?
1/36
What is the theoretical probability of rolling an even number on a dice?
1/2
Evaluate
P(5,3)
60
What is the probability of choosing a spade out of a deck of cards?
1/4
Ron goes to a deli for a sandwich. He has a choice of 4 cheeses, 3 meats, and 4 types of bread. How many different sandwiches can he choose?
48
A dice is rolled and two coins are flipped. What is the probability of landing on an even number and getting two heads?
1/2x1/2x1/2= 1/8
What is the theoretical probability of choosing an Ace from a deck of cards?
1/13
Evaluate P(6,6)
720
What is the probability of choosing a vowel from the word PROBABILITY?
4/11
The bank requires you to make a 5-digit PIN number to access your account. If you can use any number from 0-9, and the numbers can be used more than once, how many different PIN numbers are possible?
100,000
There are 5 red marbles and 5 blue marbles in a bag. A marble is selected, not replaced, and then a second marble is selected. What is the P(red, blue)?
(5/10)x(5/9)= 5/18
Jason flipped a coin 20 times. He landed on heads 4 times and tails 16 times. What is the experimental probability of landing on tails?
4/5, 0.8, 80%
Elvis has 20 pieces of artwork. He can only hang 3 at a time. How many different ways can he hang his artwork?
6,840
Ten cards are labeled with the numbers 1 through 10. Find P(7 or 9). Write your answer as a fraction, decimal and percent.
1/5 = 0.2 = 20%
Jen is taking a 5 question true/false quiz. How many different ways can she answer the quiz?
2x2x2x2x2 = 32
There are 5 red marbles and 5 blue marbles in a bag. A marble is selected, not replaced, and then a second marble is selected. What is the P(red, red)?
(5/10)x(4/9)= 4/18
Rebecca flipped a coin 20 times. She landed on heads 8 times. How does the experimental probability compare to the theoretical probability?
The experimental probability is less than the theoretical probability. (40% is less than 50%)
If there are 8 swimmers in a race, how many ways can the swimmers finish in 1st, 2nd and 3rd place?
336
The 6th grade girls at Lake Mary Prep make up 78% of the class. What is the probability that a student chosen at random from the 6th grade will NOT be a girl?
22%
In order to make a passcode, a student must pick 1 letter from the alphabet and 1 number from 0-9. How many different passcodes are possible?
26x10= 260
There are 5 red marbles and 5 blue marbles in a bag. A marble is selected, not replaced, and then a second marble is selected. What is the P(red, red, red)?
(5/10)x(4/9)x(3/8)= 1/12
A spinner with 3 equal sections is labeled RED, BLUE and YELLOW. Carl spins the spinner 40 times, landing on YELLOW 15 times. What is the theoretical probability of landing on YELLOW?
1/3
Two different letters are picked from the word MATH. What is the probability that H is selected first and A is selected second?
1/12