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Business Analytics Practice Test: Difficult Level
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Business analytics is the process of transforming data into insights to improve business decisions.

Data management, data visualization, predictive modeling, data mining, forecasting simulation, and optimization are some of the tools used to create insights from data.

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Business Analytics Practice Test: Difficult Level
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25 Questions

1. If first quartile and third quartile are as 20 and 18 respectively with median of 12 then distribution is skewed to
2. Around central value of observations, extent to which values depart from normal distribution is classified as
3. Distribution which consists of all values of sample statistic of sampling is classified as
4. Number of emergency cases in hospital for five days are as 12, 15, 18, 16, 14 then variance of sample is
5. Inter quartile range and coefficients of range are two categories of
6. Method of counting outcomes in which number of outcomes are determined without prior listing is classified as
7. Use of statistics in analysis of sales territories, advertising strategies and routing of sales personnel are classified as uses of
8. Branch of statistics which deals with findings of solution in field of medicine, education and economics is classified as
9. Formula of variance of uniform or rectangular distribution is as
10. At a grocery store, number of per day sold processed fruits cans in 15 days are 50, 70, 60, 40, 30, 20, 5, 150, 55, 75, 65, 45, 35, 25, 52 then outliers in observations are
11. Product A has per unit contribution of 6 with sold quantity of 120 units, product B has per unit contribution of 8 with sold quantity of 100 units and product C has per unit contribution of 10 with sold quantity of 130 units then weighted average mean is
12. Measure of central tendency which represents over time multiplicative effects for inflation and compound interest is considered as
13. Method in which sample statistic is used to estimate value of parameters of population is classified as
14. Type of distribution which is useful when occurrences of events are constant is classified as
15. Distance between true value of population parameter and estimated value of population parameter is called
16. Bias which occurs when randomly drawn sample from population fails to represent whole population is classified as
17. Largest numerical value is 85 and smallest numerical value is 65 and classes desired are 8 then width of class interval is
18. Marks of 20 students out of 15 in class test are as 10, 11, 12, 12.5, 13.5, 14, 10, 11, 12, 12.5, 13.5, 14, 8, 9, 9, 8, 10, 11, 11.5, 12.5 then average marks of class is
19. When data is arranged, middle value in set of observations is classified as
20. Scale which is used in determination of categorical information is called
21. Per day wage of 15 employees of different departments is as 620, 640, 750, 850, 650, 720, 730, 785, 630, 740, 900, 880, 780, 690, 850 then value of x‾ is
22. For mutually exclusive events, formula of calculating probability as n(A) ⁄ n(S) + n(B) ⁄ n(S) is used for
23. Events in which some points of sample are common are considered as
24. If frequencies widely varies between different classes, then measure of central tendency must be used is
25. Class of variable which can accept only values from set of integers is classified as

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