Standard Normal Distribution. As discussed in the introductory section, normal distributions do not necessarily have the same means and standard deviations. A normal distribution with a mean of 0 and a standard deviation of 1 is called a standard normal distribution.
Answer:
12/30
Step-by-step explanation:
So we know that the denominator-numerator=18
And we also know that it's equal to 4/10 or 2/5.
Soooooooooooooo the most easiest is just to trial and error: 12/30
But I don't really know the more complex formula...
The answer is 31 1/6, I hope this helps!
Answer:
7 : 15 : 9
Step-by-step explanation:
The GCF is 8:
56/8 = 7
120/8 = 15
72/8 = 9
