6:1 , basically asking the ratio of one to the other. Understand?
Answer:
A
Step-by-step explanation:
Use POE, none of the answer makes any sense
Answer:
a) 5.6 years
b) 0.4478
Step-by-step explanation:
We are given the following in the question:
Mean, μ = 5.6 years
Standard Deviation, σ = 1.9 years
Sample size, n = 18
We are given that the distribution of amounts of time is a bell shaped distribution that is a normal distribution.
a) Mean of each sample.
The best estimator of the sample mean is the population mean itself. Thus, we have:

Thus, the sample mean is 5.6 years.
b) Standard error
Formula:

Putting values, we have.

Thus, the standard error is 0.4478.
Answer and Step-by-step explanation:
A) Probability of taken two odd numbered token without replacement:
P(3) = 2/5 = 0.4
P(7) = 1/4 = 0.25
Construct a probability distribution:
X 3 7
p(X) 0.4 0.25
B) Mean of the probability distribution:
E(X) = ∑xp
E(X) = 3*0.4 + 7*0.25
E(X) = 2.95
Variance of the probability distribution:
V(X) = ![\Sigma X^{2}p - [E(X)]^{2}](https://tex.z-dn.net/?f=%5CSigma%20X%5E%7B2%7Dp%20-%20%5BE%28X%29%5D%5E%7B2%7D)
V(X) = 
V(X) = 7.1475
<u>Mean</u><u> and </u><u>variance</u><u> of the probability distribution are </u><u>2.95</u><u> and </u><u>7.145</u><u>, respectively.</u>
Answer:To figure out the value you have to look at all of the numbers from right to left. You start with the ones place and get prgressively bigger going up by a multiple of 10 each time. So you have the ones, tens, hundreds, thousands, ten thousands, etc. In the number in your example, you have 3 ones, 4 tens (or 40), 1 hundred or (100), 0 thousands, and 5 ten thousands (50, 000). You can write the number in expanded form to help you figure out the value. 50,000 + 100 + 40 +3.
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Step-by-step explanation: