Practice Test

Q1) While computing mean of grouped data, we assume that the frequencies are: Show Answer

Q2) The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its: Show Answer

Q3) Assertion (A): If the median of a series exceeds the mean by 3, then mode exceeds mean by 10.
Reason (R) : If made = 12.4 and mean = 10.5, then the median is 11.13. Show Answer

Q4) The average age for which maximum cases occurred is Show Answer

Q5) The upper limit of modal class is Show Answer

Q6) The mean of the given data is Show Answer

Q7) The mode of the given data is: (Refer to table 2) Show Answer

Q8) The median of the given data is Show Answer

Q9) The median weekly consumption is
(Refer to data received from Colony A) Show Answer

Q10) The mean weekly consumption is
(Refer to data received from Colony A) Show Answer

Q11) The modal class of the above data is I
(Refer to data received from Colony A) Show Answer

Q12) The modal weekly consumption is
(Refer to data received from Colony B) Show Answer

Q13) The mean weekly consumption is
(Refer to data received from Colony B) Show Answer

Q14) What is the upper limit of modal class. Show Answer

Q15) What is the mode class frequency of the given data Show Answer

Q16) How many wrestlers weights have more than 120 kg weight? Show Answer

Q17) What is the class mark for class 130-140? Show Answer

Q18) Which method is more suitable to find the mean of the above data? Show Answer

Q19) What is the modal class of the given data? Show Answer

Q20) What is the value of class interval for the given data set? Show Answer

Q21) What is the median class of the given data? Show Answer

Q22) What is the median of bowling speed? Show Answer

Q23) What is the sum of lower limit of modal class and upper limit of median class? Show Answer

Q24) Estimate the mean time taken by a student to finish the race. Show Answer

Q25) What will be the upper limit of the modal class? Show Answer

Q26) The construction of cumulative frequency table is useful in determining the Show Answer

Q27) The sum of lower limits of median class and modal class is Show Answer

Q28) How many students finished the race within 1 minute? Show Answer

Q29) Which of the following is a measure of central tendency? Show Answer

Q30) If the difference of mode and median of a data is 24, then the difference of median and mean is Show Answer

Q31) If the number of runs scored by 11 players of a cricket team of India are 5,19,42,11,50,30,21,0,52,36,27, then median is Show Answer

Q32) The mean, mode and median of grouped data will always be Show Answer

Q33) The mean and median of a distribution are 14 and 15 respectively. The value of mode is Show Answer

Q34) The value of x+y is Show Answer

Q35) If the median of the above data is 32, then x is equal to Show Answer

Q36) What will be the upper limit of the modal class? Show Answer

Q37) If A be the assumed mean, then A is always Show Answer

Q38) The class mark of the modal class is Show Answer

Q39) The class mark of the modal class 30-34 is Show Answer

Q40) The mean time required to complete the work for a worker is Show Answer

Q41) If a machine work for 10 h in a day, then approximate time required to complete the work for machine is Show Answer

Q42) The measure of central tendency is Show Answer

Q43) Mean of 100 items is 49. It was discovered that three items which should have been 60, 70, 80 were wrongly read as 40, 20, 50 respectively. The correct mean is Show Answer

Q44) A car travels from city A to city B, 120 km apart at an average speed of 50 km/h. It then makes a return trip at an average speed of 60 km/h. It covers another 120 km distance at an average speed of 40 km/h. The average speed over the entire 360 km will be Show Answer

Q45) Mode is the value of the variable which has: Show Answer

Q46) Mode and mean of a data are 12k and 15k. Median of the data is Show Answer

Q47) If mean = (3 median - mode). k, then the value of k is Show Answer

Q48) The median of set of 9 distinct observations is 20.5. If each of the largest 4 observations of the set is increased by 2, then the median of the new set Show Answer

Q49) The relationship between mean, median and mode for a moderately skewed distribution is Show Answer

Q50) Cumulative frequency curve is also called Show Answer

Q51) Total number of persons whose salaries is reduced by more than 20% is Show Answer

Q52) Total number of persons whose salary is reduced by atmost 40% is Show Answer

Q53) The modal class is Show Answer

Q54) The median class of given data is Show Answer

Q55) The empirical relationship among mean. median and mode is Show Answer