1. what is the median of the data set?

9, 3, 10, 12, 4, 5, 12, 2

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2.what is the mode of the data set?

23, 95, 100, 23, 100, 100

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3.what is the mean of the data set?

108, 305, 252, 113, 191

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4.at sara's new job she spent $11.52, $6.48, $5.99, $14.00, and $9.50 on lunch the first week.

in the second week, she spent $4 more in total for the 5 lunches than the first week.

what is the increase in the mean for the second week compared to the first?

round the answer to the nearest penny.

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5.a class of 25 students took a spelling test. two students scored 100 on each test, nine students scored 95 on each test, ten students scored 90 on each test, three students scored 80 on each test and one student scored 70.

what is the average score of the spelling test rounded to one decimal place?

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