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