A pictorial presentation of the relationship between variables is called

• A) Region
• B) Graph
• C) Straight line
• D) Equation

In a histogram, what do the heights of the bars represent?

• A) Class intervals
• B) Class frequencies
• C) Midpoints of the classes
• D) Cumulative frequencies

What are the central tendencies?

• A) Mean, median, mode and harmonic mean
• B) none of them
• C) Mean, median, mode and range
• D) Mean, median, mode and midrange

The mode of the data 2.7, 3.5, 4.9, 5.1, 8.3 is

• A) 3.5
• B) There is no mode for this data
• C) 4.9
• D) 5.1

Which of the following represents the class interval for "15 but under 25"?

• A) 15 – 24
• B) 15 – 25
• C) 16 – 25
• D) 14 – 24

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 Harmonic Mean of the data 8, 5, 3 is

• A) 5.44
• B) 4.55
• C) None of these
• D) 3.44

A data in which we study about income is called ……

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

For the class 165 – 184 the mid point will be

• A) 176.5
• B) To find mid point at least two classes are required.
• C) 172.5
• D) 174.5

How is the median calculated if a dataset has an even number of values?

• A) It cannot be determined.
• B) It is the most frequent value.
• C) It is the average of the two middle values.
• D) It is the middle value.

What type of data is most suitable for creating a histogram?

• A) Numerical data
• B) Qualitative data
• C) Categorical data
• D) Ordinal data

Bivariate categorical data can be organized as

• A) Contingency Tables
• B) Only option 2 & 3
• C) Side by Side Bar charts
• D) The Summary Table

For Symmetrical Distribution, if mean = 20, then ------------

• A) mode = 18, median = 18
• B) mode = 19, median = 18
• C) mode = 19, median = 19
• D) mode = 20, median = 20

Range of data: 4,3,2,1,0,-1,-2,-3,-4 is

• A) -4
• B) 4
• C) 8
• D) -8

If the number of terms in the data are even then the median of the data is ……..

• A) The average of 1st and 2nd quartiles
• B) The average of two middle terms
• C) The average of smallest and largest
• D) The average of 1st and 3rd quartiles

When using the MEDIAN function with an array or range, which of the following is included in the calculation?

• A) Logical values
• B) Text values
• C) Empty cells
• D) Cells with the value zero

A graphical method of representing the sample points of a multiple-step experiment is

• A) An ogive
• B) A tree diagram
• C) A frequency polygon
• D) A histogram

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

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

…………is used in compounding such as investments that are accumulated over a period of time

• A) Geometric mean
• B) Arithmetic mean
• C) Mid range
• D) Harmonic mean

In Qualitative data we study about the ….

• A) Weight
• B) Religion
• C) Height
• D) Income