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
Add the three numbers together, then divide by 3 because there are 3 numbers.
66+62+82= 210 = 70
70 is the average of these 3 numbers.
Hope this helps! :)
Answer:
They can W and W.
They can W and D.
They can D and D.
They can L and L.
They can L and D.
They can W and L.
Step-by-step explanation:
Answer:
the shorter piece is L ÷ 3 feet long in the case when the original stick is L feet long
Step-by-step explanation:
It is given that
The stick is L feet long
And, the two pieces are x and y
Now according to the question
It is given that
one of which is twice as long as the other
so,
x = 2y
x + y = L
Put the value of x in the above equation
So,
2y + y = L
3y = L
Now divide by 3
y = L ÷ 3
Hence, the shorter piece is L ÷ 3 feet long in the case when the original stick is L feet long