The answer is to be 9.135
Answer:
(0.4958, 0.7422)
Step-by-step explanation:
Let p be the true proportion of water specimens that contain detectable levels of lead. The point estimate for p is . The estimated standard deviation is given by . Because we have a large sample, the 90% confidence interval for p is given by where is the value that satisfies that above this and under the standard normal density there is an area of 0.05. So, the confidence interval is , i.e., (0.4958, 0.7422).
This is quite simple, you can see that the x-axis stays the same so then you know that it is a vertical line. You can tell because any point on this line will be (2,x). So to graph it, you draw a vertical line where x=2
<span>The first statement is correct. The two events are independent because Roger winning does not affect Stephan's chances. The probability that both events occur is found by multiplying the probabilities together.</span>
Answer:
<h2>48 600 yd²</h2>
Step-by-step explanation:
If a shape is scaled by a certain scale factor then :
<u><em>the area of the new shape</em></u> = (<em>the scale factor</em>) times (<em>the area of the original object</em>)
………………………
the new recreation complex was created by enlarging the old community soccer field by a scale factor of 9
Then
The area of the new recreation complex = 9² × 600 = 81×600 = 48 600 yd²