Question

2. Determine the following characteristics of the sample data 3 15 5 27 6 43 a. Mean: 5.153 b. Standard deviation: a 35- a 2 s6 9 9 : eviation: 1S 27 y:3S c. Number of data values, d. Mode 6 3. Characteristics from a sample are called Stats. (cr- 4. Characteristics from a population are called nft St.CC 2

Answer 1

2. a) Mean = / $f_{i}$

= (3x15 + 5x27 + 6x43) / (15+27+43)

= 5.2

b) Standard deviation = (x $f_{i}$ / $f_{i}$ )^1/2

= {[(3 - 5.2)²x15 + (5 - 5.2)²x27 + (6-5.2)²x43]/85}^1/2

=

= 1.09

c) Number of data values = 85

d) Mode = 6

3. Statistic

4. Parameter