Arithmetic mean is a measure that determines a value of the variable under study by dividing the sum of all values of the variable by their:
a) Number
b)group
c) denominator
d)numerator
The spread or scattering of observations in a data set is called……….
a)average
b)dispersion
c)central tendency
d)quartile
The observation that divide a data set into four equal parts, are called……….
a)defiles
b)quartiles
c)percentiles
d)mode
The measure which determines the middlemost observation in a data set is called:
a) median
b)mode
c)Mean
d)variance
The most frequent occurring observation in a data set is called:
a) Mode
b)Median
c)Harmonic mean
d)mean
The value obtained by reciprocating the mean of the reciprocal of x1, x2, x3,…..xn observations is called………..
a) Mode
b)Harmonic Mean
c) Geometric mean
d) Median
