Question

Does anyone mind checking to see if I'm right?
The McQuillen family wanted to display their family budget in terms of the percentages they spent for various items such as food, rent, clothing, entertainment, and so on.



Which is the best type of data display for this information?









A.
box-and-whisker plot







B.
stem-and-leaf plot







C.
circle graph







D.
line graph
I think it's D.

Answer 1

The parks commission of a city wants to survey citizens to determine their attitudes toward spending money to upgrade the city's parks.



Which survey method is least likely to give a biased result?









A.
The commissioners go to a local park and survey people there.







B.
The commissioners go to neighborhoods where there are parks and survey the residents there.







C.
The commissioners survey a group of citizens whose names are selected randomly by a computer program.







D.
The commissioners go to neighborhoods where there are no parks and survey the residents there.

I'm not so sure about this one.