PSAT practice math question

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1

<p>Is there anyone who can explain this please?</p>

<p>April Vacation Days at the Bender co.</p>

<p>No. of vacation days No. of employees
5 70
4 5
3 10
2 4
Fewer than 2 11</p>

<p>The table above shows the number of vacation days 100 employees took during the month of April at the Bender Co. Which of the following can be determined from the information in the table regarding these 100 employees?
I. The average (arithmetic mean) number of April vacation days taken by these employees.
II. The median number of April vacation days taken by these employees.
III. The mode of the number of April vacation days taken by these employees.</p>

<p>(a) None
(b) I and II only
(c) I and III only
(d) II and III only
(e)I, II, and III</p>

2

<p>Another question:</p>

<p>In a triangle, Q is the midpoint of line PR and S is the midpoint of line RT. The area of trapezoid PQST is what fraction of the area of triangle PRT?</p>

3

<p>for the 1st question, II and III only:</p>

<p>can’t do mean because you would need to know how many took 2, 1, and 0 days off</p>

<p>median- it’s irrelevant the exact number in the “fewer than 2” group because the median is the middle number when the data is listed in numerical order. in this case the median would be 5.</p>

<p>mode- easy. the number that appears the most. also in this case, it would be 5.</p>

<p>idk about the second one</p>

4

<p>A triangle: connect the points Q and S with the midpoint of PT.</p>

5

<p>grantedin: For the triangle question, draw the triangle and then try to figure it out.</p>