What is the weighted mean price of the calculators

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1. The number of semester credit hours for seven part-time college students is: 8, 5, 4, 10, 8, 3, and 4.

Compute the: a. mean b. median c. mode

2. The manager of a fast-food restaurant selected several cash register receipts at random. The amounts spent by customers were $12, $15, $16, $10, and $27.

Compute the: a. range b. the mean c. the sample variance

d. the sample standard deviation

3. During the past month an electronics store sold 31 model EL733 calculators for $30 each, 42 model EL480 calculators for $10 each, 47 model FX115 calculators for $20 each, and 63 model BA35 calculators for $24 each.

What is the weighted mean price of the calculators?

Reference no: EM132847096

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