1201. The organization of a set of data in a table showing the distribution of data into classes together with the number of observation in each class is called :
A. Truth table
B. Frequency distribution
C. Polygon
D. Data table
1202. The precise numbers which separate one class from another in a frequency distribution are called :
A. Class limits
B. Class boundaries *
C. Class mark
D. Class width
1203. The difference between the largest and smallest value of the data is called :
A. Lenght
B. Distance
C. Range *
D. Width
1204. which of the following is a graphical representtaion of data :
A. Bar charts
B. Histogram
C. Pie-Chart
D. All of these
1205. In a cumulative frequency polygon if cumulative distribution increases only in jump and is constant between jumps, then variable is :
A. Continous
B. Discrete *
C. Constant
D. Smooth
1206. The tendency of the observation to cluster in the central part of the data set is called :
A. Mean
B. Median
C. Mode
D. Central tendency *
1207. Which of the following is a measue of central tendency :
A. Mean
B. Median
C. Mode
D. All of these *
1208. If the single peaked frequency distribution is absolutely symmetrical, then which of the following is correct :
A. Mean > Median > Mode
B. Mean < Medain < Mode
C. Mean = Median = Mode *
D. None
1209: if Mean = Median = Mode then frequency distribution is :
A. Symmetrical
B. Skewed (Asymmetrical ) *
C. Curved
D. Straight
1210. If a frequency distribution is neither skewed nor J-shaped then which of the following is correct :
A. Mode = 3 Median – 2 Mean *
B. Mode = Median = Mean
C. Mode = Median + Mean
D. None