10.In your biology class, your final grade is based on several things: a lab sco

Question

10.In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 23% of your total grade, each major test is worth 20.5%, and the final exam is worth 36%. Compute the weighted average for the following scores: 85 on the lab, 64 on the first major test, 85 on the second major test, and 61 on the final exam. (Enter your answer to one decimal place.)

Explanation / Answer

weighted average for the following scores: 85 on the lab, 64 on the first major test, 85 on the second major test, and 61 on the final exam.
the lab score is worth 23% of your total grade, each major test is worth 20.5%, and the final exam is worth 36%

weighted average = (85*0.23 + 64*(0.205)+85(0.205) + 61(0.36)) / (0.23+0.205+0.205+0.36) = 72.055

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