Answer:: -0.3125 + q + 0.5
If our equation is: 10 + 4(-8q - 4) then we can simplify it in the next way:
first distribute the 4 with the content in the parentheses.
10 + 4(-8q - 4) = 10 -(8*4)q - 4*4 = 10 - 16 -32q = -6 -32q
now dependes on you, i like to put the negative sign outside a parenthesis:
-(32q + 6)
and this is your simplified equation, just give solve it.
<u>HOPES </u><u>THIS HELPS</u>
6.66666666667 is the answer
Answer:
a) 
With:


b) 

c) 

d) 


Step-by-step explanation:
For this case we know the following propoertis for the random variable X

We select a sample size of n = 81
Part a
Since the sample size is large enough we can use the central limit distribution and the distribution for the sampel mean on this case would be:

With:


Part b
We want this probability:

We can use the z score formula given by:

And if we find the z score for 89 we got:


Part c

We can use the z score formula given by:

And if we find the z score for 75.65 we got:


Part d
We want this probability:

We find the z scores:



Answer:
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