Answer:

Step-by-step explanation:

Find common denominator for 13 and 39
common denominator is 39
rewrite fractions so they have the same denominator

add them up

simplify/ put in the lowest terms

Answer:
for the fractions or decimals part, round it up then make your equation, just multiply properly, what I do is, if I have a question like 23x17, I do 23x7, then 23x1, then add it,
Step-by-step explanation:
Answer:
A strong correlation
Step-by-step explanation:
The closer the correlation coefficient is to the number 1 the stronger the correlation is.