Hi there,
Recall how each bracelet sells for 6 dollars.
Hence, the expression for selling b bracelets is 6b, where b is the number of bracelets sold for the price of 6 dollars.
Profit is the actual amount of money that is earned after you subtract expenses from the total sales.
For instance, if you make $100 from selling items, and you spent $25 on your supplies, then your profit is .
In this case, you need to subtract the $28 spent on supplies from the amount of money that you have made, which is the expression 6b.
Hence, the expression for the profit is:
Hope that helps.
Answer:
3745000
Step-by-step explanation:
3745/1 X 1000
65,297.983
If it was rounded, it would be:
65,297.98
Answer:
a)
b)
for other case
c)
Step-by-step explanation:
We have a sample of iid uniform on the interval and we want to find the cumulative distribution function.
Part a
For this case we can define the CDF for , like this:
Part b
For this case we know that:
And since are independent we have:
And then we can find the density function calculating the derivate from the last expression and we got:
for other case
Part c
For this case we can find the mean with the following integral:
And after evaluate we got:
For the variance first we need to find the second moment like this:
And after evaluate we got:
And the variance is given by:
And if we replace we got:
And after do some algebra we got: