Answer:
See below
Step-by-step explanation:
a) Create a table containing a few values of x and y
<u> x </u> <u> y </u>
-2 -⅓
-1 ⅓
0 1
1 1⅔
2 2⅓
(b) Draw the graph
Plot the points and draw a straight line through them. Make it a <em>dashed line,</em> because the line does not include the points.
Your graph should look like Fig. 1.
<em>(d) Check a point to see if it satisfies the inequality. </em>
An easy one to check is the origin, (0, 0).
0 < ⅔(0) + 1
0 < 1
The area <em>below </em>the graph satisfies the inequality.
<em>(e) Shade in the area below the graph </em>
This shows that all points in that area satisfy the inequality. The final graph should look like Figure 2.
Answer:
186
Step-by-step explanation:
The sample mean, x, is the central value in the confidence interval, that is, the average between the upper and lower bounds of the interval.
In this case, the Lower bound is 184.00 and the upper bound is 188.00. Therefore, the sample mean is given by:
The mean length, in seconds, of the sampled songs is 186.00.