Male and female students were surveyed about dancing and playing sports. They had the following preferences: Do you prefer dancing or playing sports?

Playing sports
Dancing
Row totals
Male students
0.25
0.27
0.52
Female students
0.17
0.31
0.48
Column totals
0.42
0.58
1
Which of the following is a two-way conditional frequency table for gender?

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

1 is c

2 is a

3 is a

step-by-step explanation:

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation: