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1. find P25 for the...

1. find P25 for the following data:2, 6, 3, 4, 2, 1, 2, 0, 1, 3, 6, 3

2. use Empirical Rule to find what two values 95% of the data will fall between for a data set with a mean of 234 and standard deviation of 12.

3. an aptitude test has a mean of 220 and a standard deviation of 10. find the corresponding z-score for a) a test score of 232 and b) a test score of 212.

4. you are given the following data:

x y

2 14

3 13

4 11

5 8

5 9

7 4

7 3

find:

a) SS(x)

b) SS(xy)

c) the slope b1

2. use Empirical Rule to find what two values 95% of the data will fall between for a data set with a mean of 234 and standard deviation of 12.

3. an aptitude test has a mean of 220 and a standard deviation of 10. find the corresponding z-score for a) a test score of 232 and b) a test score of 212.

4. you are given the following data:

x y

2 14

3 13

4 11

5 8

5 9

7 4

7 3

find:

a) SS(x)

b) SS(xy)

c) the slope b1

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