Business Statistics And Research Methods MCQ

Test your knowledge with important Business Statistics And Research Methods MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Business Statistics And Research Methods MCQs at Bissoy

• The most appropriate measure of dispersion for open-ended sections is
  ক

  Range

  খ

  Quartile deviation

  গ

  Mean deviation

  ঘ

  Standard deviation
• . . . . . . . . error is committed when the hypothesis is true but out test rejects it.
  ক

  Type I

  খ

  Type II

  গ

  Both A and B

  ঘ

  None of these
• If for a sample data : Mean
  ক

  Skewed to the right

  খ

  Symmetric

  গ

  Skewed to the left

  ঘ

  Neither symmetric nor skewed
• Which one of the following is a false statement?
  ক

  The signs of the regression coefficients are always the same

  খ

  Correlation coefficient is the geometric mean of the two regression coefficients

  গ

  The covariance between two variables divided by the product of their standard deviations produces the value of coefficient of correlation

  ঘ

  Coefficient of correlation is independent of origin but not of scale
• National sample survey organisation conducts surveys on
  ক

  Socio-Economic Subjects

  খ

  Agricultural and Industrial Subjects

  গ

  Demographic issues

  ঘ

  All of the above
• Which of the following averages can not be calculated with the help of graphic presentation?
  ক

  Arithmetic mean

  খ

  Quartiles

  গ

  Median

  ঘ

  Mode
• The probability of drawing a 'spade' from a well shuffled packet of cards is
  ক

  $$\frac{1}{{52}}$$

  খ

  $$\frac{4}{{52}}$$

  গ

  $$\frac{1}{4}$$

  ঘ

  $$\frac{2}{3}$$
• If the population is heterogeneous, which one of the following probability sampling methods is more appropriate?
  ক

  Sequential sampling

  খ

  Quota sampling

  গ

  Double sampling

  ঘ

  Stratified sampling
• A distribution where the mode has a lower value than the median and the median is less than the mean is known as:
  ক

  Positively skewed distribution

  খ

  Normal distribution

  গ

  Negatively skewed distribution

  ঘ

  Continuous distribution
• Two events are said to be independent, as per the theory of probability, if the occurrence of one:
  ক

  Prevents the occurrence of another

  খ

  Makes the probability of occurrence of other as zero

  গ

  Affects the probability of another

  ঘ

  Does not effects the probability of occurrence of another
• The coefficient of correlation
  ক

  Has no limits

  খ

  Can be less than one

  গ

  Can be more than one

  ঘ

  Varies between ± 1
• The geometric mean of 864 and 512 is-
  ক

  194

  খ

  64

  গ

  16

  ঘ

  None of these
• The most appropriate average to be used to compute the average rate of growth in population is
  ক

  Arithmetic mean

  খ

  Median

  গ

  Geometric mean

  ঘ

  Harmonic mean
• If two events A and B are dependent, the conditional probability of A given B, i.e., P (A/B) is calculated as:
  ক

  P(B/A) / P(AB)

  খ

  P(B) / P(A)

  গ

  P(AB) / P(A)

  ঘ

  P(AB) / P(B)
• The probable error of the coefficient of correlation(r) is calculated by which one of the following formula?
  ক

  $$0.6745\sqrt {\frac{{1 - {r^2}}}{n}} $$

  খ

  $$0.6745\frac{{\left( {1 - {r^2}} \right)}}{{\sqrt n }}$$

  গ

  $$0.6745\frac{{1 + {r^2}}}{{\sqrt n }}$$

  ঘ

  $$0.6745\frac{{\left( {1 + {r^2}} \right)}}{n}$$
• In an exclusive class
  ক

  Both class limit are included

  খ

  Both class limit are excluded

  গ

  The lower class limit are excluded

  ঘ

  The upper class limit are excluded
• If the correlation coefficientis a positive value, then the slope of the regression line:
  ক

  Must also be positive

  খ

  Can be either negative or positive

  গ

  Can be zero

  ঘ

  Cannot be zero
• If there are 8 possible classes under consideration for a goodness of fit, the number of degrees of freedom will be
  ক

  8

  খ

  7

  গ

  6

  ঘ

  Cannot be determined from the given information
• Assertion (A): When there is an evidence of a linear relationship between two variables, it may not always mean an independent-dependent relationship between the two variables.<br>Reason (R): The casual relationship between the two variables may not imply a reasonable theoretical relationship between the two.
  ক

  Both (A) and (R) are true and (R) is the correct explanation of (A)

  খ

  Both (A) and (R) are true, but (R) is not the correct explanation of (A)

  গ

  (A) is true, but (R) is false

  ঘ

  (A) is false, but (R) is true
• Which one of the following is not a measure of dispersion?
  ক

  Quartile

  খ

  Range

  গ

  Mean Deviation

  ঘ

  Standard Deviation
• Assertion (A): A reasonably large sized sample drawn randomly from a given population contains almost all the characteristics of the population.<br>Reason (R): As per the sampling theory, the assertion is based only on the 'law of inertia of large numbers'.
  ক

  (A) is true and (R) as per the sampling theory is also fully true

  খ

  (A) is true, but the (R) as per the sampling theory is not fully true

  গ

  Both (A) and (R) are false

  ঘ

  (A) is false, but the (R) is sufficient as per the sampling theory
• If b_xy = 0.25 and b_yx = 0.64 correlation coefficient is
  ক

  0.16

  খ

  0.40

  গ

  0.89

  ঘ

  0.30
• The value we would predict for the dependent variable when the independent variables are all equal to zero is called:
  ক

  Slope

  খ

  Sum of residual

  গ

  Intercept

  ঘ

  Difficult to tell
• Sample design involves which of the following?<br>1. Sampling unit<br>2. Size of samples<br>3. Type of universe<br>4. Source list<br>5. Sampling procedure
  ক

  1, 2, 3, 4, 5

  খ

  3, 4, 1, 2, 5

  গ

  3, 1, 4, 2, 5

  ঘ

  3, 5, 1, 4, 2
• The process of thoroughly checking the collected data to ensure optimal quality level is referred to as
  ক

  Validation

  খ

  Editing

  গ

  Classification

  ঘ

  Entry
• If the dispersion is small, the standard deviation is:
  ক

  Large

  খ

  Zero

  গ

  Small

  ঘ

  Negative
• Which of the following is not a restricted random sampling technique?
  ক

  Startified sampling

  খ

  Simple random sampling

  গ

  Systematic sampling

  ঘ

  Multi-stage sampling
• The Time Reversibility Test satisfies, if
  ক

  P₀₁ × P₁₀ = 100

  খ

  P₀₁ × P₁₀

  গ

  P₀₁ × P₁₀ &gt; 100²

  ঘ

  P₀₁ × P₁₀ = 1
• Which of the following is the non-random method of selecting sampling from a population?
  ক

  Stratified sampling

  খ

  Quota sampling

  গ

  Systematic sampling

  ঘ

  Cluster sampling
• If A and B are dependent events, then
  ক

  $$P\left( {A/B} \right) = \frac{{P\left( A \right) \cdot P\left( {B/A} \right)}}{{P\left( A \right)}}$$

  খ

  $$P\left( {A/B} \right) = P\left( A \right) \cdot P\left( {B/A} \right)$$

  গ

  $$P\left( {A/B} \right) = P\left( B \right) \cdot P\left( {A/B} \right)$$

  ঘ

  $$P\left( {A/B} \right) = \frac{{P\left( A \right) \cdot P\left( {B/A} \right)}}{{P\left( B \right)}}$$