Likelihood
Describe the likelihood of rolling a 9 on a standard die.
Impossible
Express 1/4 as a decimal AND percent
0.25 and 25%
What is the theoretical probability the day of the week (chose at random) being Friday? Answer as a simplified fraction.
1/7
Find the experimental probability of flipping a coin and it landing on heads if the coin is flipped 25 times, resulting in 10 tails and 15 heads.
Express answer as a simplified fraction.
3/5
# of favorable outcomes
____________________
# of possible outcomes
Which type of probability does this describe?
Theoretical
The likelihood scale ranges from ______ (lowest probability) to ________ (highest probability).
0 to 1 (in decimal/fraction form)
OR
0% to 100%
Express 80% as a decimal and a simplified fraction.
0.8 AND 4/5
A bag contains 50 marbles, 28 red ones and 22 blue ones. A marble is picked at random from the bag. What is the theoretical probability of picking a red marble?
Express answer as a simplified fraction.
14/25
Find the experimental probability of rolling a six with a die given that when it was rolled 300 times, a six occurred 54 times.
Express answer as a simplified fraction, decimal, and percent.
9/50, 0.18, 18%
Define probability.
The likelihood/chance that an event will happen
What likelihood correlates with a 1/2 probability?
As likely as not
OR
Equally likely
Express 3/8 as a decimal and percent (do NOT round)
0.375 AND 37.5%
In a class of 40 students, 8 are in the drama club and 12 are in the art club. If a student is selected at random, what is the probability that the selected student is in art club?
Express answer as a simplified fraction, decimal, and percent.
3/10, 0.3, 30%
Find the experimental probability of rolling an odd number with a die if an odd number occurred 33 times when the die was rolled 60 times.
Express answer as a simplified fraction, decimal, and percent.
11/20, 0.55, 55%
What is the difference between Theoretical and Experimental Probability?
Theoretical: What SHOULD happen, based on event
Experimental: What ACTUALLY DOES happen, based on results
Describe the likelihood of the day of the week ending in a "y."
Certain
Express 7/16 as a decimal and a percent (do NOT round!)
0.4375 AND 43.75%
What is the theoretical probability of a day of the week (chose at random) being a weekend day?
Answer as a simplified fraction, decimal (rounded to tenth), and percent (rounded to tenth).
2/7
0.3 (rounded)
28.6% (rounded)
from 0.28571.....
Each time Claude shuffled a pack of cards before a game, he recorded the suit of the top card of the pack His results for 140 games were 34 Hearts, 36 Diamonds, 38 Spades and 32 Clubs.
What is the experimental probability of getting a club?
Express answer as a simplified fraction.
8/35
If I flip a coin 260 times, how many times would I expect it to land on heads?
130 times
Describe the likelihood of the day of the week starting with an "S."
Unlikely
Express 5/21 as a decimal and percent (Both rounded to the nearest TENTH)
0.2 rounded
23.8% rounded
0.2380952......
Liz flips a coin 150 times. It lands on heads 80 times and it lands on tails 70 times. What is the theoretical probability of it landing on tails?
Express answer as a simplified fraction, decimal, and percent.
1/2, 0.5, 50%
Liz flips a coin 150 times. It lands on heads 80 times and it lands on tails 70 times. What is the experimental probability of it landing on tails?
Express answer as a simplified fraction, decimal (rounded to the nearest tenth), and percent (rounded to the nearest tenth)
7/15, 0.5, 46.7%
From
0.4666666666...
Which event has a higher probability - rolling a prime number on a standard die OR flipping heads on a coin?
*Must show both probabilities for credit.
*Rolling a prime number: 2/3 or 66.7% (rounded)
Heads: 1/2 or 50%