Category: STT206 0 STT206 1 / 50 The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation xi 50 55 65 60 2 / 50 Data which are collected by someone else or some organization either in published or unpublished forms is called ________ data Check 3 / 50 Â Quantitative variable can be classified into _________ all of the above discrete variable continuous variable none of th e above 4 / 50 Classification of data based on sources gives rise to __________ none of the above primary data secondary data all of the above 5 / 50 Range of 8, 12, 5, 15 is ______ Check 6 / 50 The following are types of correlation except _________ positive negative quadratic linear 7 / 50 Â The boundaries separating the items in a given distribution into quarters are called ________ deviation ranges quartiles mean deviation 8 / 50 Distributions in which there are only one variable are called ___________ all of the above bivariate distributions univariate distributions none of the above 9 / 50 Â Variables whose values are fractional and are points on an internal are called _________ whole variables continuous variables none of the above discrete variables 10 / 50 Variables whose values are given as numerical quantities is called _____ variables Check 11 / 50 Forecasts based solely on past and present values of the variable to be forecast is called_______ forecasts Check 12 / 50 Hypothesis testing starts with a statement about population parameters such as _________ Check 13 / 50 Multiple regression is also known as _____ regression Check 14 / 50 Distributions in which there are only one variable are called __________ univariate distributions none of the above all of the above bivariate distributions 15 / 50 The measure of dispersion that ensures highest degree of reliability is ___________ Check 16 / 50 _____________________ provides various types of statistical information of either Qualitative or quantitative nature Check 17 / 50 Â The second quartile is equivalent to the __________ mean standard deviation median variance 18 / 50 Distributions involving two discrete variables are called ________ all of the above bivariate distributions none of the above univariate distributions 19 / 50 In simple linear regression, the numbers of unknown constants are ______ Check 20 / 50 When an investigator uses questionnaire to collect data from group of people in a population, such data is called ______data Check 21 / 50 The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation yi 84 80 88 81 22 / 50 A summary measure that describes any given characteristic of the population is known as a ________ Check 23 / 50 Data collected from CBN website are called ________ data Check 24 / 50 The measure of the degree of uniformity of observations in a given set of data can be said to be _____ Check 25 / 50 Â The values of (xi,yi) are given as (1,2), (2,4), (3,8), (4,7), (5,10), (6,5), (7,14), (8,16), (9,2), (10,20) find the value of summation xi 60 65 50 55 26 / 50 Â Any characteristics of an object that is capable of assuming different values is called _______ variable concept category constant 27 / 50 Data collected on a particular variable or set of variables over time is called _________ none of the above Time Series Data Panel data null data 28 / 50 Â A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if any passenger can depart at any bus stop _________ 540 1200000 1000000 120 29 / 50 Under coefficient of correlation, When r = 0 i.e. there is ________ relationship Check 30 / 50 A bus starts with 6 people and stops at 10 different stops, how many different ways can the 6 people depart if any passenger can depart at any bus stop ____ 540 1000000 120 1200000 31 / 50 ANOVA can be classified in ________ ways Check 32 / 50 _______ is value of the sample statistic which is taken as an approximation of the parameter value Check 33 / 50 When the correlation coefficient r, equals zero, then __________ there's a non-uniform correlation there's a linear correlation there's a perfect correlation there's no correlation 34 / 50 Variables that assume any value within an interval or have the property of infinite divisibility are _____ variables Check 35 / 50 The method of least squares dictates that we choose a regression line where the sum of the square of deviations of the points from the line is _______ Check 36 / 50 Variables whose values are whole numbers or integers are called _________ discrete variable continuous variables none of the above whole variables 37 / 50 ___________ refers to the formula or statistic which has been chosen to provide an estimate of the population value Check 38 / 50 Indicators which reflect the relative changes in the level of certain phenomenon in any given period are ________ Check 39 / 50 A graphical method of showing correlation between two variables is called __________ scatter diagram dotted plotting Cartesian diagram none of the above 40 / 50 Â Correlation values ranges from ________ -1 to 1 -1 to 0 -2 to 2 0 to 1 41 / 50 Calculate the standard deviation of the date in the table belowÂ 0.91 0.75 0.82 0.5 42 / 50 Compute the harmonic mean of 5, 6 and 7 5,58 3.56 2.57 4.77 43 / 50 Under correlation coefficient, When r = +1, there is a ________linear relationship Check 44 / 50 Where T.S.S is 172.5 and W.S.S.S is 125.5, B.S.S.S will be ________ Check 45 / 50 Correlation is used to determine the extent at which the variable are correlated is called_________ correlation Check 46 / 50 Variables whose values are fractional and are points on an internal are called _________ whole variables none of the above continuous variables discrete variables 47 / 50 The degrees of freedom for the test statistic for Î¼ when Ïƒ is unknown is __________ Check 48 / 50 Distributions involving two discrete variables are called ___________ bivariate distributions all of the above univariate distributions none of the above 49 / 50 The following are types of correlation except _________ negative quadratic linear positive 50 / 50 Â Quantitative variable can be classified into ________ all of the above continuous variable none of the above discrete variable Restart quiz Rate this quiz Send feedback