A pot of dolphins contains 800 dolphins of various ages and lengths. The median length of dolphins in this pod is 5.8 feet. What
1 answer:
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The answer will be <span>Negative
Write sin(</span>
) as sin(
+
<span>)
Using the summation identity will be:
</span>=sin()+cos()sin(
<span>)
</span><span>
By following the trivial identity, you should get:
=</span>0*
<span>Remove the parentheses on -1, then multiply</span>
=0*
You should get:
Write sin(</span>
Using the summation identity will be:
</span>=sin(
</span><span>
By following the trivial identity, you should get:
=</span>0*
<span>Remove the parentheses on -1, then multiply</span>
=0*
You should get:
Answer:
No. See the explanation below.
Step-by-step explanation:
No. When we have the lineal model given by:
For n observations, where y represent the dependent variable, X represent the independent variable and are the parameters of the model, we are assuming that
is and independent and identically distrubuted variable that follows a normal distribution with the following parameters
.
So then the expected value for any error term is
So then if we find the expected value for any observation we have this:
Now we can distribute the expected value on the right by properties of the expected value like this:
By properties of the expected value if a is a constant and X a random variable, so then if we apply this property we got:
And if we see that'ts not the result supported by the claim for this reason is FALSE the statement.