Answer:
D. 68%
Step-by-step explanation:
The following statistics are given;
sample mean = 47%
s = 5% ; the sample standard deviation
n = 625 ; the sample size
The confidence interval for a population mean is given as;
sample mean ± z-score*
Substituting the above values we have;
47 ± z-score*
47 ± z-score*0.2
The confidence interval has been given as;
lower limit = 46.8%
upper limit = 47.2%
We can use any of these two values with the above expression to solve for the z-score. Using the lower limit we have the following equation;
47 - z-score*0.2 = 46.8
-z-score*0.2 = 46.8 - 47
-z-score*0.2 = -0.2
z-score = 1
The area of the standard normal curve between -1 and +1 will be the confidence level for the given confidence interval.
Pr( -1<Z<1 ) = 0.68 = 68%
From the Empirical rule
That's not enough information to calculate your grade from.
-- You've told us the scores you have in things that go together
to make up (35 + 5 + 25) = 65% of your grade.
-- We don't know your scores in the things that make up the other
35% of your grade.
<em><u>QUESTION</u></em><em><u> </u></em><em><u>:</u></em><em><u>></u></em><em><u> </u></em><em><u>WHATS </u></em><em><u>STATEMENT</u></em><em><u> IS</u></em><em><u> TRUE</u></em><em><u> </u></em><em><u>?</u></em>
<em><u>ANSWER </u></em><em><u>:</u></em><em><u>></u></em><em><u> </u></em><em><u>A</u></em><em><u>. </u></em><em><u>OR </u></em><em><u>THE </u></em><em><u>RATE </u></em><em><u>OF </u></em><em><u>FUNCTION</u></em><em><u> </u></em><em><u>G </u></em><em><u>IS </u></em><em><u>GREATER</u></em><em><u> </u></em><em><u>THAN </u></em><em><u>THE </u></em><em><u>RATE </u></em><em><u>OF </u></em><em><u>FUNCTION</u></em><em><u> </u></em><em><u>F </u></em><em><u>BECAUSE</u></em><em><u> </u></em><em><u> </u></em>
<em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u> </u></em><em><u>2</u></em><em><u> </u></em><em><u>></u></em><em><u> </u></em><em><u>(</u></em><em><u>9</u></em><em><u> </u></em><em><u>—</u></em><em><u> </u></em><em><u>7</u></em><em><u>)</u></em><em><u>.</u></em>
<em><u>HOPE </u></em><em><u>IT </u></em><em><u>HELPS </u></em>
<h2>
<em><u>#</u></em><em><u>C</u></em><em><u>A</u></em><em><u>R</u></em><em><u>Y</u></em><em><u> </u></em><em><u>ON </u></em><em><u>LEARNING</u></em></h2>
Answer:
12 is not a solution.
Step-by-step explanation:
1. Solve for w
8w = 99
w = 99 / 8
w = 12.375
12 is not a solution.