1,

Consider the following. n = 8

measurements: 5, 3, 6, 8, 5, 5, 4, 7

Calculate the sample variance, s², using the definition formula. (Round your answer to four decimal places.)

s² =

Calculate the sample variance, s² using the computing formula. (Round your answer to four decimal places.)

s² =

Find the sample standard deviation, s. (Round your answer to three decimal places.)

s =

2.

Use the following n = 15 measurements to answer the questions.

54, 62, 59, 57, 59, 61, 55, 55, 63, 59, 61, 59, 57, 57, 59

Calculate x. (Round your answer to three decimal places.)

x =

Calculate m.

m =

Calculate the mode. (Enter your answers as a comma-separated list.)

3.

Consider the following data set.

n = 10

measurements: 2, 4, 3, 4, 9, 4, 5, 8, 1, 7

Calculate the mean.

Calculate the median.

Calculate the mode. (Enter your answers as a comma-separated list.)

4.

Construct a relative frequency histogram for the following 20 measurements on a discrete variable that can take only the values 0, 1, and 2. Then answer the question.

1	1	1	0	2
0	1	1	1	0
2	1	2	2	2
1	0	1	1	2

What proportion of the measurements are greater than 1?