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
<u>Number + 5 = 10</u>
Subtract 5 from each side:<em> Number = 5</em>
64 less than y = y-64
no less = greater or equal than
negative 128 = -128
y-64 ≥ -128
Add 64 to both sides of the inequality:
y-64+64 ≥ -128+64
y ≥ -64
interval :
[-64,∞)
X^3-2x is an algebraic expression. Note that there is NO "=" sign here.
x^4 + 4x^2 + 4 = 0 is an algebraic equation. Note the presence of an "=" sign.
We conclude that the equation evaluated in t = 6 and u = 14 is equal to 412.
<h3>
How to evaluate an expression?</h3>
Here we have an expression with two variables, t and u.
6t - 32u
And we want to evaluate it in t = 6 and u = 14.
This means that we need to replace the two variables in the equation by the given numbers, so we replace the "t" with a 6, and the "u" with a 14, doing that we get:
6*6 - 32*14
Now we can solve that:
6*6 - 32*14
36 - 448 = 412
We conclude that the equation evaluated in t = 6 and u = 14 is equal to 412.
If you want to learn more about evaluating expressions:
brainly.com/question/4344214
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