Q. If a constant value is added to every observation of data, then arithmetic mean is obtained by: Subtracting the constantAdding the constantMultiplying the constantDividing the constant Answer: Adding the constant

Q. The population mean µ is called: Discrete variableContinuous variableParameterSampling unit Answer: Parameter

Q. The measure of central tendency listed below is: The raw scoreThe meanThe rangeStandard deviation Answer: The mean

Q. While computing the arithmetic mean of a frequency distribution, the each value of a class is considered equal to: Class markLower limitUpper limitLower class boundary Answer: Lower limit

Q. Scores that differ greatly from the measures of central tendency are called: Raw scoresThe best scoresExtreme scoresNone of the above Answer: Extreme scores

Q. Any measure indicating the centre of a set of data, arranged in an increasing or decreasing order of magnitude, is called a measure of: SkewnessSymmetryCentral tendencyDispersion Answer: Central tendency