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You go to the store to buy oranges and apples. Oranges have a mean weight of 1.1 and a standard deviation of 0.27, and apples

You go to the store to buy oranges and apples. Oranges have a mean weight of 1.1 and a standard deviation of 0.27, and apples have a mean weight of 0.8 and a standard deviation of 0.35. Both the Orange and Apple weights are independent. Find the variance of the difference between choosing 4 oranges and 3 apples.

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