Statistics MCQs

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Find Correlation coefficient for X and Y values given below : X= (1,2,3,4,5) Y= {11,22,34,43,56}






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An urn contains 10 black balls and 5 white balls. 2 balls are drawn from the urn one after other without replacement. What is the probability that b...






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Calculate the relative variability (coefficient of variance) for the samples 60.25, 62.38, 65.32, 61.41, and 63.23 of a population






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Calculate the relative variability (coefficient of variance) for the samples 60.25, 62.38, 65.32, 61.41, and 63.23 of a population






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The mean of a distribution is 14 and the standard deviation is 5. What is the value of the coefficient of variation?






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The mean of a distribution is 23, the median is 24, and the mode is 25.5. It is most likely that this distribution is:






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Which of the following describe the middle part of a group of numbers?






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According to the empirical rule, approximately what percent of the data should lie within µ ± σ?






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The sum of the deviations about the mean is always:






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The middle value of an ordered array of numbers is the






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Which of the following is not a measure of central tendency?






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Which of the following divides a group of data into four subgroups?






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If the standard deviation of a population is 9, the population variance is:






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If a distribution is abnormally tall and peaked, then is can be said that the distribution is:






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Sum of dots when two dice are rolled is






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The weights of students in a college/school is a






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The number of accidents in a city during 2010 is






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Which of these represent qualitative data






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Life of a T.V picture tube is a






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The rst hand and unorganized form of data is called






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The data which have already been collected by some one are called






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The grouped data is also called






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Primary data and - data are same






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Questionnaire survey method is used to collect






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Data collected by NADRA to issue computerized identity cards (CICs) are






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Population census is conducted through






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A parameter is a measure which is computed from






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Given X1 = 12; X2 = 19; X3 = 10; X4 = 7, then P Xi4 =1 equals?






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A chance variation in an observational process is






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A constant variable can take values