1221. The _______ is calculated when arithmetic average is required :

A. Mean *
B. Mode
C. Median
D. All of the above

1222. Which of the following is not an arithmetic average ?

A. Mean
B. Geometric mean
C. Median *
D. Harmonic mean

1223. The _____ is often the preferred meaure of central tendency if the data are severely skewed :

A. Mean
B. Mode
C. Median *
D. Range

1224. Which is the median of this set of numbers 4,6,7,9, 2000000?

A. 8
B. 7 *
C. 6
D. 5

1225. What is the mean of this set of numbers 4,6,7,9, 2000000?

A. 8
B. 7
C. 400.005.2 *
D. 5

1226. The median is :

A. The middle point *
B. Affected by extreme scores
C. The average
D. The highest number

1227. Which one of the following is not included in measures of central tendency ?

A. Harmonic mean
B. Arithmetic mean
C. Geometric mean
D. Quartile deviation *

1228. Which measure of central tendency takes into account the magnitude of scores ?

A. Mean *
B. Mode
C. Range
D. Median

1229. Which of the followin represents the 50th percentile , or the middle point in a set of number s arranged in order of magnitude ?

A. Mode
B. Mean
C. Variance
D. Median *

1230. THe most frequently occuring number in a set of values is called the :

A. Mean
B. Mode *
C. Median
D. Range