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question_answer1) David throws a die 10 times and the following are outcomes. 2, 5, 6, 6, 1, 5, 4, 1, 4, 6, 5 The mean of the above observations is:
question_answer2) If a, b, c, d and e are five consecutive odd numbers, then their mean is:
question_answer3) The median of five consecutive even numbers p, q, r, s and t is:
question_answer4) The mean, median and mode of the following data are respectively: 5, 17, 21, 21, 7, 13, 1, 3
question_answer5) The traffic police recorded the speed (in km/h) of 10 motors as 47, 53, 49, 60, 39, 42, 57, 55, 48 and 52. Later on an error in the recording instrument was found. Find the correct mean speed of the motors if the instrument recorded the speed 6 km/h less in each case.
question_answer6) A student scored 75 marks in Hindi, 60 marks in Mathematics, 59 marks in English and 63 marks in Drawing. The mean marks of the student in the four subjects is:
question_answer7) Find the median of 11, 15, 13, 27, 19, 24 and 20. If 13 is replaced by 31 then find the new median.
question_answer8) The median of the following observations arranged in ascending order is 24. Find x 11, 12, 14, 18, x + 2, x + 4, 30, 32, 35 and 41.
question_answer9) If the following data are represented in a pie diagram then what will be the angle of the sector corresponding to boys? Males Females Girls Boys Total 2500 2000 1500 4000 10,000
question_answer10) Find the mean of following distribution. x 10 15 20 25 30 35 40 f 7 7 13 15 7 4 5
question_answer11) A card is drawn from a pack of 52 cards. The probability of getting a queen of club or a king of heart is:
question_answer12) A bag contains 6 black and 8 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
question_answer13) PASSAGE for question Study, the bar chart and answer the questions based on it. Production of fertilizers by a company (in 10,000 tonnes) over the Years is shown in the following bar chart: In how many of the given years was the production of fertilizers more than the average production of the given years?
question_answer14) PASSAGE for question Study, the bar chart and answer the questions based on it. Production of fertilizers by a company (in 10,000 tonnes) over the Years is shown in the following bar chart: What was the percentage increase in production of fertilizers in 2002 compared to that in 1995?
question_answer15) PASSAGE for question Study, the bar chart and answer the questions based on it. Production of fertilizers by a company (in 10,000 tonnes) over the Years is shown in the following bar chart: The average production of 1996 and 1997 was exactly equal to the average production of which of the following pairs of years?
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