Business Statistics MCQ

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Business Statistics MCQ

41. In a moderately skewed distribution, the value of mode is 120 and that of median is 140. Find the value of arithmetic mean.

42. The arithmetic mean of the marks obtained by 50 students was calculated as 44. It was later discovered that a score of 36 was misread as 56. Find the correct value of arithmetic mean of the marks obtained by the students.

43. The marks obtained by 9 students in a test are 25, 20, 15, 45, 18, 7, 10, 38 and 12. Find the
median.

44. In a moderately asymmetrical distribution, the mode and mean are 32.1 and 35.4 respectively. Calculate the median.

45. In a moderately skewed distribution, the mode and median are 20 and 24 respectively. Calculate the value of mean.

46. The mean weight of 150 students in a class is 60 Kg. The mean weight of Boy students is 70 Kg and that of a girl students is 55 kg. Find the number of Boys and Girls in the class.

47. A distribution consists of three components with total frequencies of 200, 250 and 300 having means 25, 10 and 15 respectively. Find the mean of the combined distribution.

48. The arithmetic mean is 12 and the number of observations are 20 then the sum of all the values is

49. The method used to compute average or central value of the collected data is considered as

50. The mean or average used to measure central tendency is called