N1 2
3
5
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B
Examine the following systems of equations:
Which three systems do you think would be the easiest
to solve? Why?
{ * =15+6
= 4
* = 5 +6
E
35
U4x + 30
3x + 4y - 10
23
7
32
2x + 8
y = 3x + 2
20+47
B
* 3-4
{
{
Which three systems do you think would be the most
difficult to solve? Why?
7
3x
c{ :=+
= -2x + 5
2 + 3 = 31
G
2 +56
2-13
10
2+1
3x + 10
26
D

People end up tossing 12% of what they buy at the grocery store. assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the