Answer:
$290
Step-by-step explanation:
We are told that 1 out of 5 buyers change to a more expensive sofa than the one in the sale advertisement.
Now we are told that the advertised sofa is $250 and the more expensive sofa is $450.
Thus;
P(x) for expensive sofa = 1/5
P(x) for sofa in sale advertisement = 4/5
Thus, expected value is;
E(X) = (1/5)450 + (4/5)250
E(x) = 90 + 200
E(x) = $290
They are known as deductions, or deductibles,because they are deducted from your wage, before it goes into your bank account.
The answer is D
Hope this has helped you :)
Answer:
A
Step-by-step explanation:
because I remember this question in the quiz I had a while ago
Since we do not know the population standard deviation, we will use the t-distribution to construct the 90% confidence interval of the mean number of books people read. The value of

with 1010 degrees of freedom and with alpha equals to 0.10 is 1.64
First, we need to solve for the margin of error, E.

The lower bound of the confidence interval is

The upper bound of the confidence interval is

Therefore, the 90% confidence interval is
(13.94, 15.66).
We are 90% confident that the interval from 13.94 books to 15.66 books does contain the true value of the population mean number of books people read.
Answer:
The area of ΔABC is 6√6 sq. yards.
Step-by-step explanation:
The area of a triangle using the Heron's formula is:

Here <em>s</em> is given as follows:

The sides of the triangle ABC are as follows:
AB = 6 yd
BC = 7 yd
CA = 5 yd
Compute the value of <em>s</em> as follows:


Compute the area of ΔABC as follows:


Thus, the area of ΔABC is 6√6 sq. yards.