When the population mean and standard deviation are known, you use the standard normal distribution
<h3>How to determine the distribution?</h3>
There are several probability distributions; these include
- Normal distribution
- Poisson distribution
- Chi square distribution
- Binomial distribution
- Etc
Of all these distribution, only the standard normal distribution can be used when the population mean and standard deviation are known,
Note that it is also referred to as the z-distribution
Read more about probability distributions at:
brainly.com/question/24756209
Answer: 60% decrease
Step-by-step explanation:
Look at the attachment
Ok!
1st box : 6 and 3/8
2nd box : x
3rd box : 8
You find the greatest common factor of both numbers. For example 12/18 would be 2/3 because 6 goes into 12 and 18. After finding the GCF you just divide both numbers by it to get the simplified form
