Mathematics, 20.07.2019 21:30 1963038660

The table below shows the results of a survey that asked 28562856 people whether they are involved in any type of charity work. a person is selected at random from the sample. complete parts (a) through (e). frequently occasionally not at all total male 225225 455455 799799 14791479 female 203203 430430 744744 13771377 total 428428 885885 15431543 28562856

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Given the table below which shows the result of a survey that asked 2,856 people whether they are involved in any type of charity work.

$\begin{tabular}{|c|c|c|c|c|c|} &Frequently&Occassionally&Not at all&Total\\[1ex]Male&225&455&799&1,479\\Female &203&430&744&1,377\\Total&428&885&1,543&2,856\end{tabular}$

Part A:

If a person is chosen at random, the probability that the person is frequently or occassinally involved in charity work is given by:

$P(being \ frequently \ involved \ or \ being \ occassionally \ involved)\\ \\= \frac{428}{2856} + \frac{885}{2856} = \frac{1313}{2856}=\bold{0.460}$

Part B:

If a person is chosen at random, the probability that the person is female or not involved in charity work at all is given by:

$P(being \ a \ female \ or \ not \ being \ involved)\\ \\= \frac{1377}{2856} + \frac{1543}{2856}-\frac{744}{2856} = \frac{2176}{2856}=\bold{0.762}$

Part C:

If a person is chosen at random, the probability that the person is male or frequently involved in charity work is given by:

$P(being \ a \ male \ or \ being \ frequently \ involved)\\ \\= \frac{1479}{2856} + \frac{428}{2856}-\frac{225}{2856} = \frac{1682}{2856}=\bold{0.589}$

Part D:

If a person is chosen at random, the probability that the person is female or not frequently involved in charity work is given by:

$P(being \ a \ female \ or \ not \ being \ frequently \ involved)\\ \\= \frac{1377}{2856} + \frac{885}{2856} + \frac{1543}{2856}-\frac{430}{2856}-\frac{744}{2856} = \frac{2631}{2856}=\bold{0.921}$

Part E:

The events "being female" and "being frequently involved in charity work" are not mutually exclusive because being a female does not prevent a person from being frequently involved in charity work.

Indeed from the table, there are 205 females who are frequently involved in charity work.

Therefore, the answer to the question is "No, because 205 females are frequently involved charity work".

Answer from: Quest

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2 is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes. our only condition is that it passes through the point (-2,5)

A. write an equation of a line that passes through (-2, 5). b. how many different equations could y

Answer from: Quest

dalila is incorrect. the whisker on the left is very long, going all the way out to 5. the whisker goes from 5 to 30, so it has a spread of 25. the rest of the box plot values are closer together, so 5 is an outlier

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The table below shows the results of a survey that asked 28562856 people whether they are involved i...