FBQ1: ….…………. is a branch of mathematics that deals with analysis and interpretation of numerical data in terms of samples and populations.’ Answer: Statistics FBQ2: The term “statistics” can be useful as a tool in making effective decisions through a………………….. process. Answer: ‘scientific’ FBQ3: .……………. are pieces of information that represent the qualitative or quantitative attributes of a variable or set of variables. Answer: Data FBQ4: ……… is a property that can take on different values. Answer: Variable FBQ5: in graphing, the dependent variable is placed on the …………… (y-axis) while the independent variable is placed on the horizontal (x-axis). Answer: Vertical FBQ6: chi-square and t-test are examples of ………… Answer: Inferential statistics FBQ7: ….…………. consists of the totality of the observations of a particular group. Answer: Population FBQ8: The Venn-Euler diagram is an instructive illustration, which shows relationships between ……………… Answer: Set FBQ9: length, height, weight, temperature, volume and time as variables can be measured using Answer: Continuous variables FBQ10: The statement “c” is an element or member of set A or “c” belongs to “A” is written as ……………… Answer: c∈A FBQ11: Any set, which has only one element, is called a ………. Answer: Singleton FBQ12: An infinite set is one whose elements are …………..., as they are infinitely numerous. Answer: Uncountable FBQ13: Let A = {a,b,c,d,e,f} and B= {c,d,e} then we say B is contained in ……., Answer: A ⊂B FBQ14: ….……………is a graph in which class boundaries or class interval is marked on the horizontal axis and the corresponding class frequency on the vertical axis. Answer: Histogram FBQ15: Find the Median of: 104, 107, 110, 103, 105, 100 Answer: 104.5 FBQ17: Technique of Data Collection which may include the use of interview or administering questionnaires is known as …………. Answer: Primary source FBQ16: In a test administered to 10 students, the total score is 30. Find the deciles rank of a score of 26. 18, 28, 25, 26, 24, 30, 22, 20, 16, 27 Answer: 6.4 FBQ18: In a test administered to 10 students, the total score is 30. Find the value data that corresponds to the 8th Deciles. 18, 28, 25, 26, 24, 30, 22, 20, 16, 27 Answer: 27.5 FBQ19: The range of the set of numbers; 8, 2, 10, 12, 6, 7, 8, 16, 14, is Answer: 16 – 2=14 FBQ20: ……….. is a collection of statements specially arranged. Answer: Argument FBQ21: Statement (in logic context) is a sentence that is either ……. or …….. Answer: True/False FBQ22: Combination of two or more simple statements is called a………. Answer: Compound statement FBQ23: the symbols ^ placed between two simple statements such as statement p^q read as “p AND q” is usually used to denote Answer: Connective/Conjunction FBQ24: The symbol used to denote disjunction in logic is ……. Answer: V FBQ25: p ⇔ q is an example of a ……… statement in logic Answer: Bi conditional FBQ26: A compound statement which is always TRUE irrespective of the truthvalues of the simple statement is called…... Answer: TAUTOLOGY FBQ27: A CONTRADICTION is a compound statement which is always……… irrespective of the truth values of the simple statements. Answer: FALSE FBQ28: ….…… is used to make predictions that can be tested by observing the outcome of an experiment. Answer: A hypothesis FBQ29: .………….. research deals with the determination, evaluation and explanation of the past events for the purpose of understanding the present and predicting the future. Answer: The historical FBQ30: Correlation studies can be classified as ………….studies Answer: Relationship FBQ31: An alternative name for the cumulative frequency distribution is ….. Answer: Ogive FBQ32: The symbol sigma, is used in mathematics to denote……... Answer: Summation FBQ33: length, height, weight, temperature, volume and time as variables can be measured using Answer: Continuous variables FBQ34: Any numerical value describing a characteristic of a population is known as ………….. Answer: Parameter FBQ35: chi-square and t-test are examples of ………… Answer: Inferential statistics FBQ36: The above formula is used to calculate……... Answer: Mean FBQ37: The above formula is used for calculating the ……… for a grouped data is ………. Answer: average mean FBQ38: ………. Is the distribution, which occurs most frequently in a distribution Answer: mode FBQ39: The above formula is used for calculating …………. the of a group data Answer: Quartile FBQ40: ……….. are ways of grouping/partitioning distribution data to have relative partition of each value in the data. Answer: Measures of partition FBQ41: Given a set of raw data below2, 3, 2, 1, 4, 4, 1, 1, 3, 2, 5, 3, 5, 1, 5, 1, 4, 2, 3, 0, 4, 1, 0, 3, 5, 2, 5, 0, 4, 1, 4, 0, 5, 2, 3, 0, 4, 4, 1, 2. what is the frequency of 3 and 4 Answer: 6 and 8 FBQ42: Given a set of raw data below2, 3, 2, 1, 4, 4, 1, 1, 3, 2, 5, 3, 5, 1, 5, 1, 4, 2, 3, 0, 4, 1, 0, 3, 5, 2, 5, 0, 4, 1, 4, 0, 5, 2, 3, 0, 4, 4, 1, 2. what is the frequency of 5 Answer: 6 FBQ43: In a frequency distribution table, the last cumulative frequency is equal to the ………………… Answer: Total frequency FBQ44: Another name for measures of spread is called………. Answer: Measures of dispersion FBQ45: The following table shows the distribution of the masses of 120 logs of wood, correct to the nearest kg. Find the median. Answer: 30 – 34 FBQ46: The above formula is used for calculating ………. range Answer: semi-interquartile FBQ47: If the lower quartile of a distribution is equal to 35 and the upper quartile is given as 25. What is the semi interquartile range? Answer: 5 FBQ48: A measure of dispersion that covers the limitations of range and quartile deviation is…………. Answer: Mean deviation FBQ49: The above formula is used for calculating ………... Answer: mean deviation FBQ50: The above formula is used for calculating ………… Answer: standard deviation MCQ1: Technique of Data Collection which may include the use of interview or administering questionnaires is known as …………. Answer: Primary source MCQ2: Data or statistical materials collected by investigator from the printed materials published by another person or organisations are called ……………… Answer: Secondary data MCQ3: A finite set is one whose members are ………….. Answer: Countable MCQ4: A set that contains no element is called ………..or empty set. Answer: null MCQ5: A universal set is the total …….. under discussion  Answer: Population MCQ6: Find the intersection of the sets A={2,5,7,8,9} and B = {1,3,7,5} Answer: {5,7} MCQ7: If we want to compare two distributions then ……...is used Answer: Polygon MCQ8: ….……… entails the use of pictures to explain or illustrate statistical data. Answer: Pictogram MCQ9: ….………is a chart in which each frequency is converted to degree and is presented on a circle Answer: Bar chart MCQ10: The symbol Ʃ is called ……………., which is used mathematics to denote Summation. Answer: Sigma MCQ11: Find the mean of the following set of numbers: 10, 9, 11, 13, 12, 12, 11, 13, 10 and 16 Answer: 11.7 MCQ12: Find the Median of: 104, 107, 110, 103, 118, 100 Answer: 105.5 MCQ13: Find quartile Q2 for the data set 16, 25, 14, 18, 21, 23, 19, 18, 21, 49 Answer: 20 MCQ14: Find quartile Q1 for the data set 16, 25, 14, 18, 21, 23, 19, 18, 21, 49 Answer: 18 MCQ15: Find quartile Q3 for the data set 16, 25, 14, 18, 21, 23, 19, 18, 21, 49 Answer: 23 MCQ16: ….……. position the data array into ten equal groups Answer: Deciles MCQ17: Two fair coins are tossed together, find the probability that at least a tail shows up. Answer: ¾ MCQ18: If an unbiased die is thrown, find the probability that the number which show up is less than or equal to 4. Answer: 2/3 MCQ19: Assuming there are 4 blue balls, 5 black balls and 6 red balls in a bag. If we pick a ball the first time, then replace the ball and again pick a ball the second time, then the type of ball we pick the first time does not, in anyway have any effect or influence on the second ball that was picked. Hence we say that the two outcomes are ……… Answer: Independent. MCQ20: A box contains 4 black and 6 white identical beads. If a girl picks two beads randomly one after the other with replacement. What is the probability that the first bead is black and the second bead is white Answer: 6/25 MCQ21: Evaluate 8! Answer: 40,320 MCQ22: Evaluate 4P3 ÷ 4P2 Answer: 2 MCQ23: Find the number of permutations of the letters of the word JAMES Answer: 120 MCQ24: 20C5 ÷ 20P5 Answer: 1/5! MCQ25: If 99.5% of the population of a village belongs to a political party XYZ. Find the probability that 2 out of 5000 villagers does not belong to the party XYZ. Answer: 0.0023 MCQ26: Any systematic investigation to establish facts is called……... Answer: Research MCQ27: ANOVA means Answer: analyses of variance MCQ28: If empirical data reaches significance under the appropriate statistical formula, the research …….. is supported Answer: hypothesis MCQ29: null hypothesis means no effect of the …………… was observed on the dependent variable(s). Answer: independent variable(s) MCQ30: ….……. is an instrument of data collection Answer: questionnaire MCQ31: ….…………is an attempt to synthesise and integrate, empirical data for maximum clarification and unification. Answer: A theory MCQ32: In ……. inquiry specific expectations of hypothesis are developed on the basis of general principles Answer: deductive MCQ33: In everyday affairs, decisions are made based on the available data or information at hand. Answer: data MCQ34: the number of votes in an election is a ……..variable. Answer: discrete MCQ35: ….….means to predict, estimate or to project into the future. Answer: forecasting MCQ36: A statistical ….. is a statement or postulation or a theory about the relationship between a dependent and independent variables Answer: hypothesis MCQ37: Any set, which has only one element, is called a ………. Answer: singleton MCQ38: The Venn-Euler diagram is an instructive illustration, which shows relationships between ……………… Answer: set MCQ39: Two sets X and Y are said to be ………………. if neither X nor Y has elements in common Answer: disjoint MCQ40: In set, the symbol Ո means Answer: intersection MCQ41: The following are statements except Answer: How are you today? MCQ42: This is 100 level class” and “Toyosi is a member of the class” is a …… Statement Answer: compound MCQ43: Simple Bar Chart can contain only ………………………… Answer: one information MCQ44: the outcomes of an experiment are …….if each of the outcomes has an equal chance of occurring Answer: equally likely MCQ45: A tin box contains 9 black, 6 blue and 10 red marbles. If a marble is picked from the box at random what is the probability that it is a red marble? Answer: 2/5 MCQ46: If two fair dice are rolled together what is the probability of obtaining a total of 4? Answer: 1/12 MCQ47: If two fair dice are rolled together what is the probability of obtaining a number greater than 4 ? Answer: 11/12 MCQ48: If two fair dice are rolled together what is the probability of obtaining a number divisible by 4 ? Answer: ¼ MCQ49: If two fair dice are rolled together what is the probability of obtaining a number which is a multiple of 5? Answer: 7/36 MCQ50: A box contains 4 black and 6 white identical beads. If a girl picks two beads randomly one after the other with replacement. What is the probability that the first bead is black and the second bead is white Answer: 6/25