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dusya [7]
3 years ago
7

The mean score of a placement exam for entrance into a math class is​ 80, with a standard deviation of 10. Use the empirical rul

e to find the percentage of scores that lie between 60 and 80.​ (Assume the data set has a​ bell-shaped distribution.)
Mathematics
1 answer:
Sedbober [7]3 years ago
5 0

Answer:

47.5%

Step-by-step explanation:

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Christian sold tickets to the game . Good seats were $5 each and poor seats cost $2 each. 210 people attended and paid $660. How
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People who purchased good seats will be labeled as a
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Answer:

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