Answer: B) Convenience Sample
Step-by-step explanation:
A convenience sample is used when pilot testing is to be done. In this case, the accounting professor wishes to know who would take a elective. Since this involves taking sample from part of population that is near at hand and can be easily taken. So it is a convenience sample.
Answer:
1.) 90 degrees. The line<em> a</em> is parallel to line <em>c </em>which is perpendicular to the other line, <em>b</em>
Step-by-step explanation:
(5x² + 2x - 3)(x - 1)
= 5x³ - 5x² + 2x² - 2x - 3x + 3
= 5x³ - 3x² - 5x + 3
In short, Your Answer would be Option D
Hope this helps!
Answer:
0.505 = 50.7% probability of a negative test.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In this question:
142 + 6 = 148 people tested positive. Of those, 142 had the disease and 6 did not.
7 + 145 = 152 people tested negative. Of those, 7 had the disease and 145 did not.
Find the probability of getting someone who tests negative, given that he or she did not have the disease.
This is the probability of a negative test.
152 negative tests out of 148 + 152 = 300
152/300 = 0.507
0.505 = 50.7% probability of a negative test.
Answer:
40
Step-by-step explanation:
The median is the middle number
There are 10 numbers
The middle is between 5th and 6th number
Take the 5th and 6th numbers and average them
(39+41)/2 = 80/2 = 40
The median is 40
