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Independent variable Dependent variable Continuous variable Discrete variable of the following is not a measure of central tendency? Select correct option: Percentile Quartile Standard deviation Mode Which of the following is NOT a possible probability? Select correct option: 25/
0 1 Question # 6 of 10 ( Start time: 07:16:06 PM ) Total Marks: 1 Evaluate (10-4)! Select correct option: 1000 720 480 32 Question # 7 of 10 ( Start time: 07:17:34 PM ) Total Marks: 1 When E is an impossible event, then P(E) is: Select correct option: 0 1 2
Select correct option: 0 3/ 1/ 1/ standard deck of 52 cards is shuffled. What is the probability of choosing the 5 of diamonds: Select correct option: 1/ 1/ 5/ 1/ If we roll three fair dices then the total number of outcomes is: Select correct option: 6 36 216 1296 Question No: 1 ( Marks: 1 ) - Please choose one Mean deviation is always: ► Less than S.D ► Greater than S.D ► Greater or equal to S.D ► Less or equal to S.D Question No: 2 ( Marks: 1 ) - Please choose one The value of χ2can never be : ► Zero ► Less than 1 ► Greater than 1 ► Negative
► Population distribution ► Frequency distribution ► Sampling distribution ► Sample distribution Question No: 10 ( Marks: 1 ) - Please choose one An estimator T is said to be unbiased estimator of if ► E (T) = ► E (T) =T ► E (T) = ► E (T) = Question No: 11 ( Marks: 1 ) - Please choose one If the following is a probability distribution, then what is the value of 'a': X 1 2 3 P(X) 0.1 a 0. ► 0. ► 0. ► 0. ► 0. Question No: 12 ( Marks: 1 ) - Please choose one A discrete probability function f(x) is always: ► Non-negative ► Negative ► One ► Zero
► Variance ► Mean ► Standard deviation ► Covariance Question No: 14 ( Marks: 1 ) - Please choose one The __________: ► ► ► ► Question No: 15 ( Marks: 1 ) - Please choose one The area under a normal curve between 0 and - 1.75 is ►. ►. ►. ►. Question No: 16 ( Marks: 1 ) - Please choose one The continuity correction factor is used when: ► The sample size is at least 5 ► Both nP and n (1-P) are at least 30 ► A continuous distribution is used to approximate a discrete distribution ► The standard normal distribution is applied Question No: 17 ( Marks: 1 ) - Please choose one Which of the following is impossible in sampling: ► Destructive tests ► Heterogeneous ► To make voters list ► None of these Question No: 18 ( Marks: 1 ) - Please choose one Which of the following is a systematic arrangement of data into rows and columns?
► Helmert ► Pearson ► R.A Fisher ► Francis Question No: 6 ( Marks: 1 ) - Please choose one For testing of hypothesis about population proportion , we use: ► Z-test ► t-Test ► Both Z & T-test ► F test Question No: 7 ( Marks: 1 ) - Please choose one If a random variable X denotes the number of heads when three distinct coins are tossed, the X assumed the values: ► 0,1,2, ► 1,3,3, ► 1, 2, 3 ► 3, 2 Question No: 8 ( Marks: 1 ) - Please choose one If X and Y are independent variables, then E (XY) is: ► E(XX) ► E(X).E(Y) ► X.E(Y) ► Y.E(X) Question No: 9 ( Marks: 1 ) - Please choose one The parameters of the binomial distribution b(x; n, p) are: ► x & n ► x & p ► n & p ► x, n & p Question No: 10 ( Marks: 1 ) - Please choose one If P (E) is the probability that an event will occur, which of the following must be false: ► P(E)= - 1 ► P(E)= ► P(E)=1/ ► P(E)=1/ Question No: 11 ( Marks: 1 ) - Please choose one
► E (T) =T
► E (T) =
► E (T) =
Question No: 12 ( Marks: 1 ) - Please choose one The best unbiased estimator for population variance is: ► Sample mean ► Sample median ► Sample proportion ► Sample variance Question No: 13 ( Marks: 1 ) - Please choose one The sample variance is: ► Unbiased estimator of ► Biased estimator of ► Unbiased estimator of ► None of these Question No: 14 ( Marks: 1 ) - Please choose one When c is a constant, then E(c) is: 1 0 c
- c ► 0 ► 1 ► c ► - c Question No: 15 ( Marks: 1 ) - Please choose one If f (x, y) is bivariate probability density function of continuous r.v.'s X and Y then is:
Question No: 21 ( Marks: 1 ) - Please choose one In normal distribution Q.D = ► ► ► ► Question No: 22 ( Marks: 1 ) - Please choose one In normal distribution ► 1 ► 2 ► 3 ► 0 Question No: 23 ( Marks: 1 ) - Please choose one If you connect the mid-points of rectangles in a histogram by a series of lines that also touches the x-axis from both ends, what will you get? ► Ogive ► Frequency polygon ► Frequency curve ► Historigram Question No: 24 ( Marks: 1 ) - Please choose one Which one of the following statements is true regarding a population? ► It must be a large number of values ► It must refer to people ► It is a collection of individuals, objects, or measurements ► It is small part of whole Question No: 25 ( Marks: 1 ) - Please choose one When ,what is the value of Median, if the distribution is symmetrical: ► 1 ► 2 ► 3 ► 4 Question No: 26 ( Marks: 1 ) - Please choose one In a simple linear regression model, if it is assumed that the intercept parameter is equal to zero, then: ► The regression line will pass through the origin ► The regression line will pass through the point (0,10).
Question No: 27 ( Marks: 1 ) - Please choose one The degrees of freedom for a t-test with sample size 10 is: ► 5 ► 8 ► 9 ► 10 Question No: 28 ( Marks: 1 ) - Please choose one In testing of hypothesis, we always begin it with assuming that: ► Null hypothesis is true ► Alternative hypothesis is true ► Sample size is large ► Population is normal Question No: 29 ( Marks: 1 ) - Please choose one A failing student is passed by an examiner is an example of: ► Type I error ► Type II error ► Correct decision ► No information regarding student exams Question No: 30 ( Marks: 1 ) - Please choose one How to find? ► f(0, 0) + f(0, 1) + f(1, 2) ► f(2, 0) + f(0, 1) + f(1, 0) ► f(0, 0) + f(1, 1) + f(1, 0) ► f(0, 0) + f(0, 1) + f(1, 0) Question No: 1 ( Marks: 1 ) - Please choose one 10! =…………. ► 362880 ► 3628800 ► 362280 ► 362800 Question No: 2 ( Marks: 1 ) - Please choose one When E is an impossible event, then P(E) is:
