For this case we have to:
x: Be the variable that represents the number of adult rounds
y: Be the variable that represents the number of rounds of children
We want to know for what amount of rounds bingo costs are the same for adults and children.
Adult costs = 2x + 13
Child costs = 3y + 10
Matching:

We want the same number of rounds, x = y:

Thus, for 3 rounds the costs are the same.
Answer:
3
The answer is no (all you do it plug in the point that correspond with the x and y, in the equation
Answer:
Step-by-step explanation:
the answere is 1/5
juat have to have trust
Answer:
a) Sample co-variance = -1.5
b) Sample correlation = -0.4404152
c) Weak negative relationship between X and Y.
Step-by-step explanation:
a) by sample co-variance = sum ((x - xbar)* (y-ybar)/n-1
#.... use the following program in R
x = c(7,8, 5, 3, 9)
y = c(7,5,9,7,7)
sv = sum((x-mean(x))*(y-mean(y)))/4
cor(x,y)
####################################
Answer:
You have 3 + 2 + 2 which is the same as 7 on the other side.
Step-by-step explanation:
3 + 2 + 2 is 7