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What is the probability of an exam score

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Reference no: EM132190090

Professor Ivy has the following scores on her final exam:

54, 47, 75, 62, 70, 80, 87

54, 47, 75, 62, 70, 80, 87 

66, 56, 95, 62, 95, 98, 95

66, 56, 95, 62, 95, 98, 95

Compute the values indicated below. Express your answers rounded to the nearest tenth.

Mean:

Standard Deviation: 

Use the 68-95-99.7 Rule to answer the following question. 

What is the probability of an exam score less than 57 ?  

Express your answer rounded to the nearest thousandth.

Reference no: EM132190090

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