Question

Q.12 :-If unexplained variation between variables x and y is 0.25, then r is

0.25
0.50
0.75
none​

Answer 1

Step-by-step explanation:

xy= 25

x+ y= 1+ 25

=x+y=25

Answer 2

sum of explained variable and unexplained variable must be 100%

explained variable + unexplained variable = 100%

so here we have to find explained variable .

so,

unexplained variable = 0.25% = 25%

explained variable + unexplained variable = 100%

explained variable ( r ) = 100 % - 25%

explain (r) = 75% = 0.75%

so option C is correct .