In the state of Pennsylvania, each standard automobile license plate number consists of three letters followed by a four-digit n
1 answer:
Answer:
17,576,000
Step-by-step explanation:
From A to Z, there are 26 possible letter characters (L).
From 0 to 9, there are 10 possible numeric characters (N)
If each standard automobile license plate number in Pennsylvania follows the pattern LLLNNNN, the number of license plates that can be formed is:
17,576,000 distinct license plate numbers can be formed in Pennsylvania.
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Answer:
Step-by-step explanation:
Answer:
a) In order to check if an estimator is unbiased we need to check this condition:
And we can find the expected value of each estimator like this:
So then we conclude that is unbiased.
For the second estimator we have this:
And then we conclude that is unbiaed too.
b) For this case first we need to find the variance of each estimator:
And for the second estimator we have this:
And the relative efficiency is given by:
Step-by-step explanation:
For this case we assume that we have a random sample given by: and each
Part a
In order to check if an estimator is unbiased we need to check this condition:
And we can find the expected value of each estimator like this:
So then we conclude that is unbiased.
For the second estimator we have this:
And then we conclude that is unbiaed too.
Part b
For this case first we need to find the variance of each estimator:
And for the second estimator we have this:
And the relative efficiency is given by: