Question

Below is an ordered array of FK. Answer questions 19 to 24.


159 170 172 173 192 193 199 201

201 201 216 217 230 235 256


Q 19

Choose the incorrect

1 Number of observations is 15

2 Sum of all observations is 2759

3 Range is 97

4 Mean is 201


Q 20

Consider

A Median is the 9th observation

B There are 3 modes

C Median is 201

Choose the incorrect

1 A

2 B

3 A, B

4 A, B, C


Q 21

The distribution of FK is

1 Positively skewed.

2 Asymptotic.

3 Asymmetric.

4 Symmetric.


Q 22

Sample standard deviation is

1 25.8

2 26.7

3 374.2

4 666.8


Q 23

Choose the incorrect

1 Q1 position is 4

2 Q2 position is 8

3 Median position is 8

4 Q3 position is 12


Q 24

Choose the incorrect

1 Range is 97

2 Interquartile range is 44

3 Coefficient of variation is 13.3%

4 Range and interquartile range are measures of variation

Answer 1

Q19.

2 Sum of all observations is 2759

Q20.

3 A, B

Q21.

4 Symmetric.

Q22.

2 26.7

Q23.

All correct

Q24.

All correct