0% 0 Statistics Quiz 11 1 / 50 The mean and variance of binomial distribution are ______________? Symmetrical Equal Unequal None 2 / 50 The shape of normal curve depends upon ? Mean None Standard Deviation Quartile 3 / 50 In a binomial distribution, n = 10 p= 3/5, its mean is:_________________? 1 6 44232 None of these 4 / 50 _________ statistics deals with collection, presentation and analysis of data? Two Descriptive Collection Inferential 5 / 50 If Y=-8X ? 5 and SD of X is 3, then SD of Y is______________? 24 3 None of these 8 6 / 50 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_____________? Symmetrical Asymptotic Negatively Skewed Positively Skewed 7 / 50 In the plural sense, statistic means____________? Meteorology Data Methods Science 8 / 50 When in a frequency distribution the maximum frequency occur at one end, then the frequency curve of such distribution is ________________? Bell- shaped U- shaped J- shaped V- shaped 9 / 50 When ?n? becomes very large, binomial distribution tends to ______________? Hyper-geometric distribution Poisson dist Normal dist Standard dist 10 / 50 Normal distribution has ___________? 3 parameter 1 parameter 4 parameter 2 parameter 11 / 50 Which of the following test use Rank Sums____________? Runs test Chi-Square and sign test F test Kruskal-Wallis and Wilcoxon tests 12 / 50 Which of the following is not based on all the observations ? Harmonic Mean Arithmetic Mean Mode Geometric Mean 13 / 50 Which of the following cannot be Ho_________________? Q ? Qo Q ? Qo Q = Qo Q ? Qo 14 / 50 Given the N values in a series, the geometric mean is______________? The Nth root of the product of N values The square root of the product of N values The third root of the product of N values The fourth root of the product of N values 15 / 50 Which of the formula is used in chain indices: ________________? Both (a) and (b) but not (c) ?pn/?po x100 pn/pn-1 x100 pn/po x100 16 / 50 A experiment repeated number of time one by one is called _________________? Introduce Specified Random Raw data 17 / 50 Fisher?s ideal index number is also obtained by _______________? Taking G.M. of Laspeyre?s and Paasche?s index Both (a) and (b) None of these Taking A.M. of Laspeyre?s and Paasche?s index 18 / 50 ?xy is always equal to_____________? ?yx ?x -?yx ?o2 19 / 50 . If the occurrence of one event means that another cannot happen, then the events are _______________? Bayesian Independent Empirical Mutually Exclusive 20 / 50 The Spearman Rank-Correlation test requires that the______________? Data must be measured on the same scale Data must be distribution at least approximately as a t-distribution Data must be from two independent samples Data should be of ordinal scale at least 21 / 50 Let X1,X2,??,Xn be a random sample from a density,,,, f(x ? ?) where ? is a value of the random variable ?with known density g?(?) Then the estimator ?(?) with?/ respect to the prior g?(?) is define as_________________E[?(?)?X1,X2,?..,Xn] is called? Sufficient estimator Bay?s estimator Posterior Bay?s estimator Minimax estimator 22 / 50 In normal distribution, mean ______= Mode? S.D. Mean deviation Median Quartile 23 / 50 Sample variance S2 is unbiased estimator of population variance 26 because ________________? E(u) = X Ux = u E(P) = P E(S2) = s2 24 / 50 A simple aggregate quantity index is used to______________? Measure the change in price of a product Measure the overall change in price of a range of products Measure the change in quantity of product Measure the overall change in quantity of range of product. 25 / 50 Standard normal variable Z is___________? ? ? x/ ? ?- x /? x ? ? /? x ? ?/ ? 26 / 50 If all values are same then the measure of dispersion will be? Mode Mean 0 1 27 / 50 The equation of standard normal distribution is f(z)=________? 1/?2? 1/??2?e -1/2?2 1/??2?e 1/2?2 1/??2? 28 / 50 If in a binomial distribution n = 1 then E(X) is:____________________? q 0 1 p 29 / 50 N ? n/N -1 is called ___________ population? Un-finite Group Finite Correction 30 / 50 Which of the following is not a measure of central tendency ? Mode Standard deviation Percentile Quartile 31 / 50 The mean deviation of the values, 18, 12, 15, is_______________? 3 Zero 2 6 32 / 50 The arithmetic mean of 10,8,6,4, and 2 is ______________? 5 15 6 30 33 / 50 The shape of normal distribution does depend upon _____ and variance? u 2 ?2 x S/?2 34 / 50 Average is good if it is easy to ____________? Change Understand Clear Capable 35 / 50 _____________is used to compare the variation or dispersion in two or more sets of data even though they are measured in different units? Mean Deviation Coefficient of Variation Range Standard Deviation 36 / 50 The measure of Dispersion can never be________________? 0 Negative 1 Positive 37 / 50 Sum of deviations will be zero if it is taken from_________________? Median Mean Standard Deviation Mode 38 / 50 The special rule of multiplication of probability, the events must be ______________? Mutually exclusive Independent Empirical Bayesian 39 / 50 In constructing a histogram which is to be taken along X-axis__________? Class frequency Class mark Class interval Class boundaries 40 / 50 The headings for various columns are said to be ________________? Portions of column Vertical column Column table Column caption 41 / 50 If the standard deviation of a population is 9, the population variance is_____________? 9 21 81 3 42 / 50 Sample proportion P is __________ estimator? Parameter Unbiased Biased None of these 43 / 50 Normal distribution is _____ distribution? #NAME? non-symmetrical #NAME? Symmetrical 44 / 50 Area to the right of (z=0) is the area for ____ values of z? None of these Positive Zero Negative 45 / 50 If a & b are constants, then Var (a + bX) equal to_________________? b2 Var(X) b Var(x) Var(bX) + a None of these 46 / 50 For +ve and -ve skewed, check the sign of _______? ?2 ?2 ?1 ?3 47 / 50 Ratio between given year and base year is called __________ in percentage? None of these Price relative Link relative Retail prices 48 / 50 The sampling error is the_____________? Same as the standard error of the mean Error caused by selecting a bad sample Standard deviation multiplied by the sample size Difference between the value of the sample mean and the value of the population mean 49 / 50 The possibility of total outcome in a coin equal to _______________? 0.3 Fifty % Twenty % 0.6 50 / 50 When using the sign test, if two scores are tied, then_____________? We count them We discard them non of these We depends upon the scores Provide Your Information Your score is The average score is 0% LinkedIn Facebook Twitter 0% Restart quiz Send feedback Share on facebook Facebook Share on twitter Twitter Share on whatsapp WhatsApp PrevStatistics Quiz 10 Statistics Quiz 12Next
