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प्रश्न
Find the first quartile and third quartile for the given observations.
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22
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उत्तर
Given data are arranged in ascending order 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22.
Here the number of observations is n = 11
Q1 = Size of `(("N" + 1)/4)^"th"` value
= Size of `((11 + 1)/4)^"th"` value
= Size of 3rd value
Q1 = 6
Q3 = Size of `((3("N" + 1))/4)^"th"` value
= Size of `((3 xx 12)/4)^"th"` value
= Size of 9th value
Q3 = 18
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संबंधित प्रश्न
Calculate GM for the following table gives the weight of 31 persons in the sample survey.
| Weight (lbs): | 130 | 135 | 140 | 145 | 146 | 148 | 149 | 150 | 157 |
| Frequency | 3 | 4 | 6 | 6 | 3 | 5 | 2 | 1 | 1 |
The monthly incomes of 8 families in rupees in a certain locality are given below. Calculate the mean, the geometric mean and the harmonic mean and confirm that the relations among them holds true. Verify their relationships among averages.
| Family: | A | B | C | D | E | F | G | H |
| Income (Rs.): | 70 | 10 | 50 | 75 | 8 | 25 | 8 | 42 |
Calculate AM, GM and HM and also verify their relations among them for the following data.
| X | 5 | 15 | 10 | 30 | 25 | 20 | 35 | 40 |
| f | 18 | 16 | 20 | 21 | 22 | 13 | 12 | 16 |
Calculate AM, GM and HM from the following data and also find its relationship:
| Marks: | 0 - 10 | 10 - 20 | 20 - 30 | 30 - 40 | 40 - 50 | 50 - 60 |
| No. of students: | 5 | 10 | 25 | 30 | 20 | 10 |
The best measure of central tendency is _________.
The geometric mean of two numbers 8 and 18 shall be
Median is the same as:
The mean of the values 11, 12, 13, 14 and 15 is
Harmonic mean is better than other means if the data are for
The first quartile is also known as _________.
