Term 2 - Statistics Two Marks Questions

9th Standard

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Maths

Time : 00:45:00 Hrs
Total Marks : 16
    8 x 2 = 16
  1. In a rice mill, seven labours are receiving the daily wages of Rs.500, Rs.600, Rs.600, Rs.800, Rs.800, Rs.800 and Rs.1000, find the modal wage

  2. Find the mode for the set of values 17, 18, 20, 20, 21, 21, 22, 22.

  3. A set of numbers consists of five 4’s, four 5’s, nine 6’s,and six 9’s. What is the mode.

  4. In a week, temperature of a certain place is measured during winter are as follows 260C,240C,280C,310C,260C.Find the mean temperatureof the week.

  5. The mean weight of 4 members of a family is 60 kg. Three of them have the weight 56kg,68kg and 72 kg respectively. Find the weight of the fourth member.

  6. In a class test in mathematics,10 students scored 75 marks,12 students scored 60 mark, 8 students scored 40 marks and 3 students scored 30 marks. Find the mean of their score.

  7. In a research laboratory scientists treated 6 mice with lung cancer using medicine. Ten days, they measured the volume of the tumor of the tumor in each mouse given the results in the table

    Mouse marking 1 2 3 4 5 6
    Tumor Volume(mm)3 145 148 142 141 139 140

    Find the mean

  8. Find the mode of the given data:3.1,3.2,3.3,2.1,1.3,3.3,3.1

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