Business Statistics and Research Methods MCQs

Class	10 - 25	25 - 40	40 - 55	55 - 70	70 - 85
f	6	20	44	?	3

If the mode of the above distribution is 48.6, then the missing frequency will be

If N = 11, ΣX = 60, ΣX² = 1,000 , then standard deviation will be

The formula to determine the number of classes given by Sturge's rule is which one of the following?
Where, $$K$$ = Number of classes
$$N$$ =Total number of observations
$$\left( {\log \,N} \right)$$  = Logarithm of the total number of observations

Systematic sampling is used for which of the following?
1. Quota sampling
2. Non-probability sampling
3. Probability sampling

Consider the following statements.
Assertion (A): The expected values should be at least 5 to apply the chi-square test.
Reason (R): The chi-square distribution provides an adequate approximation of the sampling distribution.
Indicate the correct answer from the following:

Standard deviation of a binomial distribution is equal to

When coefficient of skewness in negative

Consider the following statements:
1. Quartile deviations is more instructive range as it discards the dispersion of extreme items
2. Coefficient of quartile deviaton cannot be used to compare the degree of variations in different distributions
3. There are 10 deciles for a series
Which one of the above statements is/are correct?

Which two of the following measures of central tendency are NOT capable of algebraic treatment?
1. Geometric Mean
2. Median
3. Arithmetic Mean
4. Mode
5. Harmonic Mean
Choose the correct answer from the options given below: