Last year a small statistical consulting company paid each of its five statistical
clerks $22,000, two statistical analysts $50,000 each, and the senior
statistician/owner $270,000. The number of employees earning less than
the mean salary is:

• A) 6
• B) 5
• C) 7
• D) 4

………. Graph is a graph in which points are plotted and joins them with a line.

• A) Sector
• B) picture
• C) Line
• D) column and Bar

Frequency Distributions involve

• A) Histograms
• B) Polygons
• C) All of these
• D) Tables

Which of the following is true?

• A) Arithmetic Mean is based on all and median on the middle value.
• B) Arithmetic Mean is based on all and Mode is on the middle values.
• C) None of these.
• D) Median based on most frequent value and mode on middle value.

In an ordered array of data having even number of values, median is the . . .

• A) average of 4 middle values.
• B) difference of 2 middle values.
• C) Sum of 2 middle values.
• D) average of 2 middle values.

Geometric mean of 130, 140, 160 is -------------

• A) 145.7
• B) 142.8
• C) 130.5
• D) 135.5

Under which of the following conditions for three terms a, b, c , their all central tendencies (mean, median & mode) are equal

• A) a = b = c
• B) a > b but b < c
• C) a < b < c
• D) a > b > c

The formula for finding the geometric mean of the data $$(X_1 ,X_2 ,X_3 ,...,X_n )$$ is given by . . . . . . .

• A) $$\bar X = (X_1 + X_2 + X_3 + ... + X_n )^{1/n}$$
• B) $$\bar X = (X_1 \times X_2 \times X_3 \times ... \times X_n )^n$$
• C) $$\bar X = \frac{{X_1 \times X_2 \times X_3 \times ... \times X_n }}{n}$$
• D) $$\bar X = (X_1 \times X_2 \times X_3 \times ... \times X_n )^{1/n}$$

Which of the following reveals the weakest fact.

• A) The measure of central tendency measures the distance of values from means
• B) c) The measure of central tendency measures the value which has tendency to lie in the central part of the data.
• C) b) The measure of central tendency measures that value in tha data which occurs in the data most frequent times.
• D) a) The measure of central tendency measures that value which depends only on the extreme values

A data in which we study about sex is called ...

• A) Quantitative
• B) Chronological
• C) Geographical
• D) Qualitative

For a negatively skewed distribution, which of the following is true?

• A) Mean > Median > Mode
• B) Mean < Median < Mode
• C) Mean = Median = Mode
• D) Mean > Mode > Median

In sector graph a ___________ is divided into different sectors.

• A) circle
• B) Rectangle
• C) none of these
• D) Sphere

The statement
"Median does not get affected by extreme values or outliers in the data"
is . . .

• A) True
• B) False
• C)
• D)

……………….. use the division of a circle into different sectors.

• A) Sector
• B) picture
• C) Line
• D) column and Bar

In a stem-and-leaf display of a decimal number, what does the "leaf" represent?

• A) The units place
• B) The middle digit
• C) The sum of all digits
• D) The tens place

The formula for class width =

• A) Median /no of classes
• B) Range / no of classes
• C) Mean / no of classes
• D) Mode / no of classes

Frequency polygon is a . . . . . obtained from a frequency distribution.

• A) Pareto Chart
• B) Bar Chart
• C) None of these
• D) A line graph

The formula for mean is

• A) The sum of values/total no of values
• B) none of these
• C) The sum of value
• D) The sum of values /2

If sign of 'r ' is negative then it indicates

• A) (b) Indirect relationship between X & Y
• B) (d) b or c
• C) (c ) X & Y equal
• D) (a) Direct relationship between X & Y

The relationship between height and educational qualification

• A) The height is dependent and education is independent variable
• B) There is direct relationship between the two
• C) The height is independent and education is dependent variable
• D) There is inverse relationship between the two