In the next year, an economist in a particular nation believes that exports will have a mean of 165 and a standard deviation of 15 (in millions of dollars). In addition, he believes that imports will have a mean of 80 and a standard deviation of 13 (in millions of dollars). Finally, he believes that the correlation between imports and exports will be -0.36. Define the trade balance as exports minus imports. Find the mean and the standard deviation of the trade balance (in millions of dollars).

Answerof the company, both internally and externally;

False is the answer hope this mate

Part (a) is relatively straight forward.there are 4 aces in a standard 52-card deck. so the probability that an ace is picked is just 4/52.part (b): note that there are 4 suits in a standard 52-card deck. so picking hearts will be 13/52 or 1/4.part (c): the probability condition or means we need to add the two probabilities because we do not want them simultaneously. so, we end up getting pr(ace) + pr(heart).from part (a), we found that picking an ace had a probability of 4/52, which is reduced down to 1/13.from part (b), we found that picking a heart had a probability of 1/4.so, the probability of an ace or a heart is 1/13 + 1/4 = 4/52 + 13/52 = 17/52.