The correlation r between the age of a car x , and the cars mileage, y is 0.768. what percent of the variation in mieage cannot be explained by diffrences in the cars ages?
a-23.2%
b-41.0%
c-59.0%
b-76.8%

The correlation r between the age of a car x , and the cars mileage, y is 0.768. this means that 76.8 % of the variation in mileage can be explained by the differences in the cars ages, 100 – 76.8 = 23.2% of the variation cannot be explained

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90