The Anderson Lumber Company Has Three Sawmills That Produce Boards

question 7

Multiple Choice

The Anderson Lumber Company has three sawmills that produce boards of different lengths.The following table is a joint frequency distribution based on a random sample of 1,000 boards selected from the lumber inventory. Based on these data,the probability of selecting a board from inventory that is 10 feet long is:

• A)0.196.
• B)0.450.
• C)0.084.
• D)0.170.

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