Answer: 17.89
Step-by-step explanation:
In binomial distribution, the standard deviation is given by :-
As per given , we have
The number of vouchers in the sample with errors is denoted by x.
p= 0.20 , n = 2000
Then , 
Hence, the standard deviation of x is 17.89.
Answer:
Unit rates are useful because they allow you to make direct comparisons. For example, you have your choice between two bottles of ketchup.
Step-by-step explanation:
Answer:
What are the options?
Step-by-step explanation:
I will be able to help you then.
<span>seventy-seven hundredths.</span>
Answer: False
Step-by-step explanation:
degrees of freedom=(r-1)(c-1)
I don't know if I'm exactly right
if not sorry
