0% 0 Statistics Quiz 9 1 / 50 Correlation coefficient lies between__________________? 0 ? r ? 1 0 ? r ? -1 -1 ? r ? 1 1 ? r ? 0 2 / 50 A set of jointly sufficient statistic is defined to be minimal sufficient if and only if_______________? It is not a function of every other set of sufficient statistics. It is a function of some other set of sufficient statistics. It is a function of every other set of sufficient It is a function of any sufficient statistics in the set. 3 / 50 Data arranging into rows and columns are called______________? Classification Frequency distribution Table Tabulation 4 / 50 Volume Index in Marshall is ____________? ?Pn(Po + Pn)/?Pn(Po + Pn) ?Pn(Po + Pn)/?Pn(Po + Pn) x100 Non of these ?Pn(qo + qn)/?Pn 5 / 50 The frequency distribution mean > Median > Mode is called __________? #NAME? Symmetrical Negatively One 6 / 50 Suppose for 40 observations, the variance is 50. If all the observations are increased by 20, the variance of these increased observation will be______________? 50 50-20 = 30 70 50/20 7 / 50 A coin is so weighted that P (T) = 2P(H) then P(H) is _______________? 44198 44230 44199 1 8 / 50 In a certain normal distribution having ? = 35 and variance = 16, then mode will be_______________? 4 3.5 None of these 16 9 / 50 if Var(T2)_______________? Unbiased Sufficient Efficient Consistent 10 / 50 If x = 3 then value of regression co-efficient of X or Y is ________________? -3 0 -3 -4 11 / 50 Eyes color of employees is the example of____________? Constant variable Attribute Continuous variable Discrete variable 12 / 50 A sample of 24 observations is taken from a population that has 150 elements. The sampling distribution of is___________? Approximately normal because the sample size is large in comparsion to the population size Approximately normal because of the central limit theorem Approximately normal because is always approximately normally distributed Normal if the population is normally distributed 13 / 50 Census reports used as a source of data is____________? none Primary source Organized data secondary source 14 / 50 Which of the following describe the middle part of a group of numbers ? Measure of Central Tendency Measure of Shape Measure of Variability Measure of Association 15 / 50 The binomial distribution is symmetrical when:______________? Both (b) & (c) but not (a) P > q Probability of success & probability of failure are equal P = 1/2 16 / 50 The Normal Curve is asymptotic to the? None X-axis Y-axis Along Y=X 17 / 50 In a binomial distribution mean and variance is ________________? Mean < variance Variance ? mean None of these Variance > mean 18 / 50 In hypergeometric distribution, the trial are:_______________? Dependent Independent Collectively Exhaustive None 19 / 50 You asked five of your classmates about their height. On the basis of this information, you states the average height of all student in your university or college is 67 inches. This is an example of____________? Population Descriptive statistics Inferential Statistics Parameter 20 / 50 If the conditional distribution of X1,X2,?..Xn given S=s, does not depends on ?, for any value of S=s the statistics S=s(X1,X2,?..Xn) is called______________? Consistent Unbiased Efficient Sufficient 21 / 50 Class _________ is the difference between two class limit? Class mark Class interval None of these Boundary 22 / 50 A simple aggregate price index_____________? Ignores relative quantities Compares absolute prices to absolute quantities Compares relative quantities to relative prices Compares relative quantities 23 / 50 Binomial distribution is symmetrical when P=_________________? q 1/q 1 2q 24 / 50 If any value in the data is zero, then it is not possible to have _______? Medain H.M. Mode A.M. 25 / 50 Let X1,X2,?Xn be a random sample from the density f(x;(?), where ? may be vector. If the conditional distribution of X1,X2,?Xn given S=s does not depend on ? for any value of s of S, then statistic is called? Sufficient statistic Minimal sufficient statistic Efficient Minimax statistics 26 / 50 Data which have not been arranged in systematic order is called___________? Group data Raw data Tabular data Undefined data 27 / 50 If y = bx + a the mean deviation of y is_____________? M.D.of x var (x) S.? D. of y S.? D. of x 28 / 50 The Harmonic Mean of any two numbers is________________? 2aba+b a+b a+b2 ab??? 29 / 50 If bxy = -.8 by x = 1.2 then value of r is ________________? ?.96 ?-.96 0 None of these 30 / 50 The graph obtained by joining the mid points of the tops of adjacent rectangles in histogram is called ______________? Histgram Ogive Frequency polgon Pie chart 31 / 50 A list of sample _________ is called sample space? Subset Distinct Piont Events 32 / 50 Price in proceeding year used in the method is called __________? Chain Method Aggregation Method Volume Fixed Method 33 / 50 The experiment is repeated a _____________ number of times? Expansion Fixed Times Trial 34 / 50 The mathematical exception of x + y is equal to ________________? E(x) + E(y) E(y) E(x + x) E(x + 0) 35 / 50 There are ____________ parameter in Binomial distribution? n, q q, p n, p, q n, p 36 / 50 Relative measure of skewness was introduced by _____________? Rowely Mode Karl Person Lack 37 / 50 Normal Distribution ? Uni Modal have no Mode Multi Modal Bi Modal 38 / 50 The median of normal distribution corresponds to the value of Z equal to_________________? 0.5 ? 0 1 39 / 50 The first moment about means is always_________________? 1 Negative Zero None of these 40 / 50 If E(x) is the expected value of X then E[x ? E(x)]= ___________________? 0 E(X) ? 0 E(x) ? E(x) E(x) + E(x) 41 / 50 Data being used by an agency which is originally collected by them are _______ data? Secondary Primary Quantitative Discrete 42 / 50 The variance of randomvariable of x then var(x) = E[x-E[x]2 = E[________]? (X ? A)2 (x ? u)2 E(x) (x ? 4)2 43 / 50 Life of a T.V picture tube is a____________? Qualitative variable Continuous variable Constant Discrete variable 44 / 50 In a binomial distribution mean and variance is _________________? None of these Mean < variance Variance > mean Variance ? mean 45 / 50 A source note foot are the _______________? Same Top Different Bottom 46 / 50 In binomial distribution the probability of success remains __________ from trial to trial? Probability Constant Varies Four 47 / 50 Median is always central value even if the data is _______? Arranged Unassigned Discrete Continuous 48 / 50 The number of accidents in a city during 2012 is____________? Discrete variable Qualitative variable Constant Continuous variable 49 / 50 when a three die rolled the sample space consists of _____________? 24 outcomes 216 outcomes Non of these 6 outcomes 50 / 50 The Runs test results in rejecting the null hypothesis of randomness when______________? There is an unusually large number of runs There is an unusually small number of runs None of these Either of the above 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 8 Statistics Quiz 10Next
