[{"id":240608,"question":"Arithmetic mean is a measure that determines a value of the variable under study by dividing the sum of all values of the variable by their:","choices":[{"text":"Number","value":"A"},{"text":"Group","value":"B"},{"text":"Denominator","value":"C"},{"value":"D"},{"value":"E"}],"correctAnswer":1},{"id":240606,"question":"In a cumulative frequency Polygon frequencies are plotted against:","choices":[{"text":"Mid points","value":"A"},{"text":"Upper class boundries","value":"B"},{"text":"Class limits","value":"C"},{"value":"D"},{"value":"E"}],"correctAnswer":2},{"id":240604,"question":"A cumulative frequency table is also called:","choices":[{"text":"Frequency distribution","value":"A"},{"text":"Data","value":"B"},{"text":"Less than cumulative frequency distribution","value":"C"},{"value":"D"},{"value":"E"}],"correctAnswer":3},{"id":240603,"question":"A frequency polygon is a many sided:","choices":[{"text":"Closed figure","value":"A"},{"text":"Rectangle","value":"B"},{"text":"Square","value":"C"},{"value":"D"},{"value":"E"}],"correctAnswer":1},{"id":240601,"question":"A histogram is a set of adjacent:","choices":[{"text":"Squares","value":"A"},{"text":"Rectangles","value":"B"},{"text":"Circles","value":"C"},{"value":"D"},{"value":"E"}],"correctAnswer":2},{"id":240599,"question":"A grouped frequency table is also called:","choices":[{"text":"Data","value":"A"},{"text":"Frequency distribution","value":"B"},{"text":"Frequency Polygon","value":"C"},{"value":"D"},{"value":"E"}],"correctAnswer":2},{"id":179833,"question":"To find the public opinion or trend the most suitable statistics is:","choices":[{"text":"Mean","value":"A"},{"text":"Median","value":"B"},{"text":"Mode","value":"C"},{"text":"Variance","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":179832,"question":"In a set of observation.   5,5,7,9,9,9,9,11,11,11,11,12,12         the mode is: ","choices":[{"text":"9","value":"A"},{"text":"11","value":"B"},{"text":"Both 9 and 11","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":179831,"question":"The sum of 30 observations is 1500. Its average will be:","choices":[{"text":"1500","value":"A"},{"text":"150","value":"B"},{"text":"15","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":179830,"question":"The average pocket money of 30 students is Rs.20/- , The total amount in the class is:","choices":[{"text":"Rs.20/-","value":"A"},{"text":"Rs.30/-","value":"B"},{"text":"Rs.300/-","value":"C"},{"text":"Rs.600/-","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":179829,"question":"In a set of data, the difference between highest value and lowest value is called:","choices":[{"text":"Standard deriation","value":"A"},{"text":"Range","value":"B"},{"text":"Dispersion","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":179828,"question":"The square of standard deriation :","choices":[{"text":"Standard deriation","value":"A"},{"text":"Range","value":"B"},{"text":"Dispersion","value":"C"},{"text":"Variance","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":179827,"question":"In the given set of data 5,5,5,5,5,5,5 the standard deriation is:","choices":[{"text":"5","value":"A"},{"text":"0","value":"B"},{"text":"7","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":179826,"question":"In the given set of data 5,7,7,5,3,7,2,8,2 mode is:","choices":[{"text":"9","value":"A"},{"text":"5","value":"B"},{"text":"2","value":"C"},{"text":"7","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":179825,"question":"The reciprocal of Arithematic mean of reciprocal of values is called:","choices":[{"text":"Average","value":"A"},{"text":"Harmonic mean","value":"B"},{"text":"Geometric mean","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2}]