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The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through 1427 1222 985 (c) below.

The state test scores for 12 randomly selected high school seniors are shown on the right. Complete parts (a) through 1427 1222 985 (c) below. 700 720 838 Assume the population is normally distributed. 727 747 548 621 1442 945 (a) Find the sample mean. Help me solve this View an example Get more help Clear all Check

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