The frequency table represents a survey taken of computer shoppers. what percent of the shoppers were not previous owners of a computer?
a) 12%
b) 17%
c) 71%
d) 83%

Option B.

Step-by-step explanation:

The given table represents the a survey taken of computer shoppers.

We need to find the percent of the shoppers who were not previous owners of a computer.

Relative frequency show the percentage of each type of previous ownership (None, Windows, Macintosh).

From the given table it is clear that

Relative frequency of None =  0.17 = 17%

Relative frequency of Windows =  0.12 = 12%

Relative frequency of Macintosh =  0.71 = 71%

17% of  the shoppers were not previous owners of a computer.

Therefore, the correct option is B.

4 letter words if letters do not repeat
4ways to select first letter•3•2•1=24

3 letter words if letters do not repeat
4•3•2=24

2 letter words if letters do not repeat
4•3=12

Total ways to make words with 4 letters that do nor repeat 24•2+12=60