Suppose that you are the power company and must provide power to a lighthouse on a rock one mile off shore. The nearest pole to
1 answer:
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Answer: The answers are
(i) The slope of segments DE and AC is not 0.
(ii) The coordinates of D and E were found using the Midpoint Formula.
Step-by-step explanation: We can easily see in the proof that the co-ordinates of D and E were found using the mid-point formula, not distance between two points formula. So, this is the first flaw in the Gina's proof.
Also, we see that the slope of line DE and AC, both are same, not equal to 0 but is equal to
which is 0 only if
So, this is the second mistake.
Thus, the statements that corrects the flaw in Gina's proof are
(i) The slope of segments DE and AC is not 0.
(ii) The coordinates of D and E were found using the Midpoint Formula.
<h3>Given</h3>
.15 of employees are managers
.25 of employees are MBAs
.60 of managers are MBAs
<h3>Find</h3>(a) proportion of employees who are managers with MBA
(b) proportion of MBAs who are managers
(c) whether MBA and manager are independent
<h3>Solution</h3>(a) Your answer of 0.60×0.15 = 0.09 is correct
(b) 0.09 of the 0.25 of employees who are MBAs are managers. .09/.25 = 0.36
(c) No. P(MBA | manager) = 0.60 ≠ P(MBA) = 0.25
_____
The only calculation necessary is the one you did for part (a). Other answers can be based directly on the given data. The chart below is unnecessary.