When the correlation coefficient, r, is close to 1:

• a. There is no relationship between the two variables.

• b. There is a strong linear relationship between the two variables.

• c. it is impossible to tell there is a relationship between the two variables.

• d. The slope of the regression line will be close to one.

Three coins are tossed simultaneously. The probability of getting at most 2 heads is

• a, 7/8

• b, 5/8

• c, 3/8

• d, 5/6

The algebraic sum of the deviations of a set of n values from their mean is

• a) 0

• b) n - 1

• c) n

• d) n + 1

Q)The median of a frequency distribution is found graphically with the help of:

• a) Histogram

• b) Frequency curve

• c) Frequency polygon

• d) Ogive

Q)The mode of a frequency distribution can be determined graphically by:

• a) Histogram

• b) Frequency curve

• c) Frequency polygon

• d) Ogive

Which of the following measures of central tendency is the midpoint for a set of scores?

• a, Average

• b, Mean

• c, Mode

• d, Median

What are the variables whose calculation is done according to the weight, height, and length known as?

• (A) Flowchart variables

• (B) Discrete variables

• (C) Continuous variables

• (D) Measuring variables

Specialised processes such as graphical and numerical methods are utilised in which of the following?

• (A) Education statistics

• (B) Descriptive statistics

• (C) Business statistics

• (D) Social statistics

Review of performance appraisal, labour turnover rates, planning of incentives, and training programs are the examples of which of the following?

• (A) Statistics in production

• (B) Statistics in marketing

• (C) Statistics in finance

• (D) Statistics in personnel management

Q)Variance of a constant 'x' is

• a)0

• b)x/2

• c)x

• d)1