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Answer:</h2>
Using the distributive property, we can simplify the expression.
4 × 3 = 12
4 × = 1
4 × = -2
Here is the simplified expression:
I'm guessing you intended to say has mean and standard deviation , and has means and standard deviation .
If , then has mean
and variance
Given that and , we have
Then
and are independent, so , and
so that the variance, and hence standard deviation, are
# # #
Alternatively, if you've already learned about the variance of linear combinations of random variables, that is
then the variance of is simply the sum of the variances of and , , and so the standard deviation is again .
Answer:
1,700
Step-by-step explanation:
5x10^-7 is 0.0000005, while 8.5x10^-4 is 0.00085
0.00085/0.0000005=1700
It is D (2,8] because it does not include 2 but includes 8.
Answer:
The answer is x^3 - 11x^2
Step-by-step explanation:
Write in standard form.
Hoped this helped!
brainly, please?