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question_answer1) The mean age of 6 person is increased by 4 years if one of them whose age is 26 years is replaced by new man then the age of new man is:
question_answer2) The median of the following data is: 36, 46, 32, 42, 33, 52, 50, 48, 56, 60, 53, 95, 75, 80, 70.
question_answer3) The mode of the following data is: Size of shoe 1 2 3 5 6 7 8 9 No. of Pairs used 5 6 4 8 9 7 4 10
question_answer4) In a football team, the mean age of eleven player is 30 years. These are three groups of three players each and whose mean ages are 25 years, 26 years & 32 years respectively. If in these groups the captain and the youngest player are excluded and the captain is thirteen years older than the youngest player then the age of captain is:
question_answer5) Find the mean of the following data: Class Interval 25-29 30-34 35-39 40-44 45-49 50-54 Frequency 5 10 15 5 7 8
question_answer6) The following data is the distribution of total monthly saving of 100 families of Delhi. The modal monthly income of the family will be: Income Frequency Income Frequency 1000-1500 10 3000-3500 15 1500-2000 20 3500-4000 11 2000-2500 16 4000-4500 9 2500-3000 15 4500-5000 4
question_answer7) The median for the following frequency distribution is: Class Interval Frequency Class Interval Frequency 5-10 2 25-30 7 10-15 3 30-35 5 15-20 5 35-40 3 20-35 1 40-45 5
question_answer8) The median for the following data is : Class Mark 110 120 130 140 150 160 170 180 190 Frequency 6 25 38 45 100 75 85 39 50
question_answer9) The following table shows marks obtained by students in an examination of mathematics paper: Marks 0-10 10-20 20-30 30-40 40-50 No. of Students 10 24 40 46 20
question_answer10) Which one of the following is the correct option
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