The expression is 9*
+2+
.
9*
+2+
---> First square
by squaring the top and bottom number.
=9*
+2+
---> Multiply 9 and
=1+2+
---> Add
=3
---> Optional: turn into improper fraction
=
Answer:
The 95% confidence interval for the population mean is between $140.89 and $159.11.
Step-by-step explanation:
We have that to find our level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of .
So it is z with a pvalue of , so
Now, find the margin of error M as such
In which is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 150 - 9.11 = $140.89
The upper end of the interval is the sample mean added to M. So it is 150 + 9.11 = $159.11
The 95% confidence interval for the population mean is between $140.89 and $159.11.
Answer:
9
Step-by-step explanation:
f(3) means what is the value of f(x) when x = 3
From the table
When x = 3 then f(x) = 9
Thus f(3) = 9
Answer:
Step-by-step explanation:
<u>Definitions</u>
Integer: A whole number that can be positive, negative, or zero.
Consecutive Integers: Integers that follow each other continuously in the order from smallest to largest.
Product: The result of multiplying two of more values together.
Let x be the first integer.
Therefore, to find the consecutive integers, add 1 to each term:
- x
- x + 1
- (x + 1) + 1 = x + 2
Therefore, the product of the first three consecutive integers is:
<span>d. The product of a constant factor 11 and a 2-term factor x + 7
Hope this helps!
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