X = -17/8
Do you need explanation?
Answer: The estimated value for population mean rating based on these ten sampled ratings is 7.3 .
Step-by-step explanation:
Given : A random sample of size ten produced the following ratings in the computer games rating example in the last lesson:
12, 5, 2, 4, 1, 4, 18, 10, 1, 16.
Let x denotes any value in the above data.

We know that the sample mean
is the best estimate to the population mean
.
Sample mean=
Here , n= 10


Therefore , the estimated value for population mean rating based on these ten sampled ratings= 7.3
Answer:


Step-by-step explanation:
The area of a rectangle is given by the product of its length and width.

If we knew the value of the area, we would not be able to know any of its dimensions without being given other piece of information. We can only make assumptions.
The question states the area of the rectangular patio is 3x-6 units, i.e.

We know the product of two quantities results 3x-6, so we can factor that expression to have a possible combination between l and w. Factoring by 3:

We can say that

It can be said also

These are not the only possible combinations, but they are as simple as possible