Answer:
Step-by-step explanation:
Given
Codes: 2,3,4,5,6
Required
Determine the Mean and Variance
Equally likely implies that the data follows a uniform distribution.
So,
Where
Variance of a uniform distribution is calculated as thus;
Substitute values for a and b
He donated 18 books per month. you first finds the difference of the books then do use the number of books by the number of months (in this case it was 5 months)
Answer:
9x + 8 ?
Step-by-step explanation:
Answer:
The Standard Deviation
Step-by-step explanation:
Your concentration should be on what the standard deviation tells us about the data. The standard deviation is a number which measures how far the data are spread from the mean. Let a calculator or computer do the arithmetic. The standard deviation, s or σ , is either zero or larger than zero.
Put a thanks
Thank you
d=rt
300=r4.5
divide both sides by 4.5
66 and 2/3=r
the rate is 66 and 2/3mph
p=2(l+w)
90=2(20+w)
divide both sides by 2
45=20+w
minus 20 both sides
15=w
width=15in