Exercises 1–5
1. suppose 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. estimate the population mean rating based on these ten sampled ratings.

 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

location: point 0

step-by-step explanation:

well, -8 to 10 on a number line is 18 spaces.

1/9 of 18 is 2.

so, 4/9 of 18 must be 8.

8 spaces from -8 (a) is 0.

so, 4/9 of the way from -8 to 10 is 0!

answer: 298143

step-by-step explanation: