Areal estate office handles 50 apartment units. when the rent is $720 per month, all units are occupied. however, on the average, for each $40 increase in rent, one unit becomes vacant. each occupied unit requires an average of $48 per month for service and repairs. what rent should be charged to obtain a maximum profit?

Which best describes the strength of the correlation, and what is true about the causation between the variables? it is a weak negative correlation, and it is not likely causal. it is a weak negative correlation, and it is likely causal. it is a strong negative correlation, and it is not likely causal. it is a strong negative correlation, and it is likely causal.

{0,1,2,3,4,5,6,20,21,22,23,24,25} the distribution is considered to be: skewed the right, skewed the left, not skewed?

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?