Answer:
Step-by-step explanation:
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).
In order:
angle 3
definition of an angle bisector
angle 1
transitive property of congruence
Answer:
-23.21
Step-by-step explanation:
Edge 2021
Answer:
$3.50
Step-by-step explanation:
4 2/3 x 0.75 = $3.50