POL212
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Hybrid sampling is a method that combines procedure
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Given a set of raw data 2, 3, 2, 1, 4, 4, 1, 1, 1, 3, 2, 2, 2, 2, 5, 0, 0, 0, 1. The date with the highest frequency is
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An Experiment in which the results are always subject to chances and may change even if the experiment is repeated under the same condition is known as
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4. Evaluate n! + 0! / 2
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A branch of __that deals with analysis and interpretation of numerical data in terms of sample and population is called statistics
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Five delegates out of 6 women and 7 men are to represent an electoral body at a National election. In how many ways can the delegates be selected if it must consist of 2 women and 3 men
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All qualitative variables are measured on _scale
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In a class of 181 student, 102 offers POL 212, 64 offer BHM 206, 58 offer POL 202 and all the students take at least one of the subjects. 20 offer POL 212 and BHM 206, 15 offer POL 212 and POL 202, 18 offer BHM 206 and POL 212. Find how many students offer BHM 206 only
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In a class of 181 student, 102 offers POL 212, 64 offer BHM 206, 58 offer POL 202 and all the students take at least one of the subjects. 20 offer POL 212 and BHM 206, 15 offer POL 212 and POL 202, 18 offer BHM 206 and POL 212. Find how many students offer BHM and POL 212 only
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A statistical experiemnt in which the results of the experiment are not subject to chance if repeatedly severally under the same condition is called
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The major challenge against accurate head count apart from funding and logistics is
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12. How many subsets has a set consisting 4 elements
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Politics is a Social Science because it uses _tools for analysis
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14. The symbol ∑ƒ means
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A branch of _that deals with analysis and interpretations of numerical data in terms of sample and population is called statistics
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p <=> q is a statemnent obtaind by using 'if and only if' connective to one simple statements p and q. When is the resulting statement p <=> q True
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De facto is the approach whereby each individual is counted at the place he is found at the time of __exercise
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The scores of 5 students in an examination are: 6, 5, 8, 7 and 4. Find the variance
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19. Some of the functions of statistics in the society may be
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In a single toss of three fair coins. What is the probability of having exactly 2 tails
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21. Coefficient of variation is equal to
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Which of the following Set is a infinite Set A = {x : 2 ≤ x ≤ 12, x is an integer} B = {x: x is real}, C = {x: 3 < x < 6, x is rational number}, D = {x: x is complex number}
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There are basically two methods for assigning probabilities to events. One of these methods is
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24. In how many ways can the acronyms NOUN be written
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If the probability of a pregnant woman giving birth to a male child is 0.25, what is the probability that the child will be a girl
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The difference between the largest and smallest scores of ungrouped data is the
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The scores of 5 students in an examination are 6, 5, 8, 7 and 4. Find the standard deviation
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In an objective test marked out of 40, the marks scored by 40 student are given in this table Marks % 1 - 5 6 - 10 11 - 20 21 - 30 31 - 35 36 - 40. Calculate the mean, using an assumed mean of 21 No. of Students 2 7 12 8 5 6
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In a class of 181 student, 102 offers POL 212, 64 offer BHM 206, 58 offer POL 202 and all the students take at least one of the subjects. 20 offer POL 212 and BHM 206, 15 offer POL 212 and POL 202, 18 offer BHM 206 and POL 212. Find how many students offer POL 212 only
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Calculate the standard deviation of the following set of numbers: 148,146,150,154,156,158,160,162,164,166,168,170
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Experimental Statistics
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The cardinality of the union of Sets A, B, C, if A = {2, 3, 5, 7, 11, 13}, B = {0, 1, 9,} and C = {2, 4, 6, 8, 10, 12, 14} is
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When an experiments are actually carried out under the same condition through which an outcome is obtained. The probability of such an event is called
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In a class of 181 student, 102 offers POL 212, 64 offer BHM 206, 58 offer POL 202 and all the students take at least one of the subjects. 20 offer POL 212 and BHM 206, 15 offer POL 212 and POL 202, 18 offer BHM 206 and POL 212. Find how many students offer POL 202 only
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What is the third quatile of the following set of data 16, 25, 14, 18, 21, 23, 19, 18, 21, 49
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The probability of an event that can be obtained from an already existing result, from what is likely to happen or from already known information is termed
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In a particular week, the number of student that enrols at various school at the National Open University of Nigeria is as follow; School of education 150; School of Arts and Social Sciences 360; School of Law 220; School of Science and Technology 250; School of management 600; School of Postgraduate Studies 420. If the information is represented on a pie chart, what angle will the School of Arts & Social Sciences be represented with
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38. Find the third quartile in the following data set; 22,31,20,24,27,55
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In a Political group of 12 members the probability of picking a number from any one of the six geo-political zones in Nigeria is 2/3. If some members are to represent the group in a National meeting, find the probability that 8 members are chosen
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Find the class mark in a grouped frequency table with the class interval 40 - 49
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In a class of 181 student, 102 offers POL 212, 64 offer BHM 206, 58 offer POL 202 and all the students take at least one of the subjects. 20 offer POL 212 and BHM 206, 15 offer POL 212 and POL 202, 18 offer BHM 206 and POL 212. Find how many students offer all the three subjects
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If the Universal Set U is given by U = {a, b, c, d, e, f, h, h} and the sets A = {a, b, c}, B = {b, c, d, f, h}, C = {b, c, d, e}; find (AnB)
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In a broad sense, _is a diagram that shows relationships between numbers
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44. If A= {a,b,c,d,e,f, g, h}, the cardinality of the elements is
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In how many ways can a family of 9 divide itself into 3 groups so that each group contains 3 persons
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In a class of 181 student, 102 offers POL 212, 64 offer BHM 206, 58 offer POL 202 and all the students take at least one of the subjects. 20 offer POL 212 and BHM 206, 15 offer POL 212 and POL 202, 18 offer BHM 206 and POL 212. Find how many students offer BHM 206 and POL 202 only
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47. The two types of statistics are
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48. Find the class mark of a population whose class intervals are x1 to x2
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49. A pair of dice is tossed. Find the probability of getting a total of 10
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Write down the sample space for the experiments. Toss a coin 3 times and observe the total number of heads
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The primary purpose for is to discover, interpret develop methods and systems for the growth of knowledge
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52. If sets A={2,5,7,8,9} and B={1,3,5,7}. Then AnB is
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If A= {a,b,c,d,e,f} and B={c,d,e}, then, it is correct to conclude that B is A
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When a disfunction (OR) connective is used between two statements p, q, the statement p OR q is only false when
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Any piece(s) of information that represents the qualitative attributes of a variable(s) is called
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An advantage of frequency polygon over histogram is that it is easy to compare
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One of the attributes of statistical inquires and sampling is that it enable researcher get __easily
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The values of __may be discrete or continuous
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59. If A=46, B=34 and C=40; What angle would represent B on a pie chart
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60. A set without any element is called
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61. Another name for Cummulative Frequency Curve
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In a social research, the act of reading through books by scholars on the subject matter is called _review
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One of the class interval for a grouped frequency table is 60 - 66, what is the class boundary for this class
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Two sets X and Y are said to be _if they have no elements in common
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A folder contains 7 blue biros, 6 red biros and 3 black biros without replacement, find the probability that the three biros are of different colour
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The scientific method for collection, summarisation, presentation, analysis and interpretation of data is called
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67. The biggest financial in scientific research funding is
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A box contains 10 green, 8 yellow and 5 red marbles. If two marbles are picked at random, what is the probability that one is green and one is red
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Lack of _may be one of the limitations of statistics
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A ballot box containing 12 male voter's cards and another box containing 100 female voter's cards. Find the number of ways of selecting 5 male voter's cards
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72. Find the value of 2! + 5!
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73. Mode is the most __in a sample population
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The recommend that census should seek Age, Nationality, Sex and Weight is made by
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p AND q is a compound statement formed from two simple statements p and q respectively. What is the statement p ^ q
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