The probability of drawing a quarter from a bag of coins is 4/5. What is the probability of drawing a coin that is not a quarter from the bag? A. 20% B. 40% C. 75% D. 90%
1 answer:
The sum of probability for an event happening and not happening must be equal to 1 because there is a 100% chance that one or the other will occur. So the probability on not drawing a quarter: P(!Q)=1-4/5 P(!Q)=5/5-4/5 P(!Q)=1/5 As a percentage: p/100=1/5 p=100/5 p=20%
You might be interested in
36.8%. divide 28.52 by 77.5 then multiply by 100
Answer:
the last one
Step-by-step explanation:
Answer:
Store A: 4
Store B: 1
Store C: 3
Store D: 2
Step-by-step explanation:
I got it right
Answer:
13.75
Step-by-step explanation:
The expected value of the hourly wage is the sum of the probabilities (percentage of time spent on each job) multiplied by the payoff (money earned ) from each possible occurrence (job):
(0.6 × 11) + (0.25 × 19) + (0.15 × 16) = $13.75.
Answer:
150°
Step-by-step explanation:
180-30=150...............