Suppose the probability of being picked first in your class is 0.05. The odds of being picked first expressed in form of a: b is 1 : 19.
A probability is a number that represents the possibility or chance that a specific event will occur.
From the given information;
- Let assume the total number of people in the class is whole = 1
∴
The odds of being picked first can be computed as:
= 1 : 19
Therefore, the odds of being picked first in terms of a: b is 1 : 19
Learn more about probability here:
brainly.com/question/11234923?referrer=searchResults
Domain R (all real numbers)
Range y>= 0
Answer:
4.0486
Step-by-step explanation:
The margin of error is calculated using 
Where n=60 is the sample size and 
is the population standard deviation.
The critical value corresponding to 95% confidence interval is 
We substitute the values to obtain;
Answer:
The probability is 2/5 that a $20 bill will be drawn from the wallet.
Step-by-step explanation:
There are 20 total bills in the wallet (5 $5, 7 $10, and 8 $20, 5+7+8=20). So if the finder and returner of the wallet was to be given one of the bills drawn from the wallet there would be an 8/20 chance the owner of the wallet would pull a 20. That's because there are 20 total bills in the wallet and 8 of them are $20.
Simplifying 8/20... 8/20= 4/10= 2/5.
So, there is a 2/5 chance that a $20 bill will be pulled out of the wallet.
Hope this helps!
