Answer: The answer is 25
Step-by-step explanation:
c=a2+b2−−−−−−√
a=72+242−−−−−−−√
c=49+576−−−−−−−√
c=625−−−√
c=25
It is the commutative property of addition
Answer:
I solved it and my answer is - 1.2
Answer: c) About 16% of the variation in value of the car is explained by a linear relationship with the age of the car.
e) The correlation coefficient, r, is 0.397.
Step-by-step explanation:
Given that:
Coefficient of determination (r²) between two variables, age of car (x) and value of car (y) = 0.158
Correlation of determination (r²) of 0.158 = (0.158 × 100% = 15.8% of the variation between the two variables can be explained by the regression line). Hence, about 16% of the variation between age and value of car can be explained by the linear relationship.
Coefficient of correlation (r) = sqrt(r²) = sqrt(0.158) = 0.397
