0% 0 Statistics Quiz 4 1 / 50 If E (ax) = _______________? Non of these x E(a) A a E(x) 2 / 50 In probability sampling each sampling unit has some____________________? Know Unknown Large Small 3 / 50 The value of interval x ? S include _______________? 0.9973 0.9545 0.6827 0.4945 4 / 50 The word statistics is defined as_____________? Singular as well as plural sense Singular Sense Non of these Plural Sense 5 / 50 ____________ use the division of a circle into different sectors? Line Graph Sector Graph Conversion Graphs Frequency Polygon 6 / 50 Which of the following case is true for hyper geometric distribution________________? Successive trial are dependent Both (b) & (c) but not (a) Probability remains constant for all the trials. Probability changes from trial to trial 7 / 50 ____________ is used to criterion of consistency i.e for consistence performance? Standard Deviation Coefficient of Variation Mean Deviation Range 8 / 50 Mean of the binomial distribution is ______________? Non of these nP xm Pq 9 / 50 100% of values lies in the limits are equal to ______________? 40 and 60 20 and 30 20 and 80 20 and 70 10 / 50 If ?1 = 0 it means the distribution is _______________? Symmetrical Non of these #NAME? #NAME? 11 / 50 If the occurrence of excludes the occurrence of the other is called ________________? Exchaustive Mutually exclusive Probability Likely 12 / 50 Which of the following Measure of averages is affected by extreme (very small or very largE. values in data set? Harmonic Mean Arithmetic Mean Median Geometric Mean 13 / 50 N(?, 2?) means normally distribution with mean u and variance2? then (3?, 4) means _____________? 76 46 36 47 14 / 50 A random variable is ____________ ? A function None of these Not a function A continuous variable 15 / 50 The probability of even/odd numbers when a fair die is rolled is____________? 44233 44202 13150 44261 16 / 50 The Number of road accidents is the example of____________? Discrete variable Continuous variable variable Constant 17 / 50 The sum of squared deviations of a set of n values from their mean is__________________? Maximum None Least Zero 18 / 50 We get ________ dividing range by numbers of class interval? Mid point Class marks Class boundary Number of classes 19 / 50 First moment about origin is always equal to _______________? Zero None of these A.M. variance 20 / 50 A quantity obtained by applying certain rule or formula is known as ________________? Estimate Sample Estimation Test Statistics 21 / 50 The Estimation and testing of hypothesis are main branches of ________________? Probability distribution Sampling Regression Statistical Inference 22 / 50 Binomial distribution is used when n is ____________________? Large Small Zero Normal 23 / 50 The variance of binomial distribution is always:________________? Less than mean Equal to standard deviation Equal to mean Greater than mean 24 / 50 The square bracket is an finite G. Series is obtained by formula _________________? 1/1-rn a/(1-r)n a/1-rn a/1-r 25 / 50 Least square regression line always passes through ____________________? (x,y) (X,Z) x/y (X,Y) 26 / 50 The correct variance is define as the __________________? M.? D. of data h2/6 varies of data P2/6 Variance of data h2/12 S.? D. of data h2/12 27 / 50 Non-sample errors are reduced by:________________? Increasing the sample size None of these Reduced the amount of data Decreasing the sample standard deviation 28 / 50 All Index numbers are not suitable for all _________________? Purpose Price Chain relative Kind 29 / 50 Class interval size is the different between the upper and lower class_________ of a class? Class Interval Marks Boundary Limits 30 / 50 Combine mean calculated by different given mean is ________? ?n1x/x1 n1x1 + n2x2x + _____ nuxu/n1 + n2 + ___+ nu n1x1 + n2x2x + _____ nuxu/n1 +n2 + ___ + nu n1x1 + n2x2x + _____ nuxu/x1 + x2 + ____ x4 31 / 50 If Ho is stated as Q = Qo< the alternate hypothesis in general stated________________? Q ? Qo None of these All Q Qo 32 / 50 For a binomial distribution with n = 15 as p changes from. 50 toward. 05 the distribution will__________? All of the above. Become more positively skewed Become symmetrical Become more negatively skewed 33 / 50 The process of systematic arrangement of data into rows and columns is called _________? Tabulation Classification None of these Bar chart 34 / 50 Check the consistency used _____________? Q.D. Coefficient of variance Mean coefficient Coefficient of dispersion 35 / 50 The value maximum ordinate of a standard normal curve at Z = 0 is:________? 1 None of these 0.3989 0.5 36 / 50 What is the variance of binomial distribution __________________? nq/p n p np (1 ? p) np/q 37 / 50 Which of the following is a true statement for comparing the t distribution with standard normal ? The proportion of area beyond a specific value of ?t? is less than the proportion of normal curve Non of these The Normal Curve is symmetrical whereas the t-distribution are slightly skewed. Greater the degree of freedom, the more the t-distribution resembles the standard normal distribution 38 / 50 The measure of relative dispersion is called __________________? Quartile deviation Mean coefficient Coefficient of quartile Deviation Mean dervation 39 / 50 Questionnaire survey method is used to collect____________? Qualitative variable Primary data None of these Secondary data 40 / 50 The sum of values divided by their number is called___________? Mean Median Mode Harmonic Mean 41 / 50 If all values are same then the measure of dispersion will be________________? Mean 1 Mode 0 42 / 50 Major area of statistics today is concerned with drawing of conclusions from__________? Two Complete study Samples Primary 43 / 50 Total Area under the normal curve is_______________? 1 Less than 1 None Greater than 1 44 / 50 95% confidence limits u are ________________? x?1.65 6/?n x?1.96 6/?n u?1.95 S/?n ?1.96 6/?n 45 / 50 Events occurring together without affecting each other are called:_________________? Independent events Dependent events Equally likely events Mutually Exclusive events 46 / 50 Link relative = ________________? Pn/Po x 100 Pn/ Pn-1 x100 Pn/P1 x 100 Pn/Po x 100 47 / 50 The area under the normal distribution curve outside the interval of z=1 and z=3.09 is_____________? 0.1477 0.1597 None of the above 0.3413 48 / 50 In normal distribution ?1 = 0 and ?2 is equal to _____________? 2 1 3 0.5 49 / 50 Probability distribution of a random variable is also know as Probability_________________? Probability Density Function Probability Distribution Distribution Function Probability Function 50 / 50 The number of defective bulbs in a lot is example of ____________? None of these Continuous variable Function Discrete variable 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 3 Statistics Quiz 5Next
