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प्रश्न
Which of the following is not a measure of central tendency?
विकल्प
Mean
Median
Mode
Standard deviation
उत्तर
Standard deviation is not a measure of central tendency.
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संबंधित प्रश्न
What do you understand by the word “statistics” in
(i) Singular form
(ii) Plural form?
What is primary data?
What secondary data?
Explain the meaning of the term Class-mark.
Define cumulative frequency distribution.
Explain the difference between a frequency distribution and a cumulative frequency distribution.
Find the mean, median and mode of the following data:
| Class | 0 – 10 | 10 – 20 | 20 – 30 | 30 – 40 | 40 – 50 | 50 – 60 | 60 – 70 |
| Frequency | 4 | 4 | 7 | 10 | 12 | 8 | 5 |
Find the mean, median and mode of the following data:
| Class | 0 – 50 | 50 – 100 | 100 – 150 | 150 – 200 | 200 – 250 | 250 – 300 | 300 - 350 |
| Frequency | 2 | 3 | 5 | 6 | 5 | 3 | 1 |
In a frequency distribution table with 12 classes, the class-width is 2.5 and the lowest class boundary is 8.1, then what is the upper class boundary of the highest class?
The observation 29, 32, 48, 50, x, x+2, 72, 78, 84, 95 are arranged in ascending order. What is the value of x if the median of the data is 63?
If the median of `x/5,x/4,x/2,x and x/3`, where x > 0, is 8, find the value of x.
Hint Arranging the observations in ascending order, we have `x/5,x/4,x/3,x/2,x Median= x/3=8.`
The daily income of a sample of 50 employees are tabulated as follows:
| Income (in Rs.): | 1-1200 | 201 -400 | 401-600 | 601 - 800 |
| No.of employees : | 14 | 15 | 14 | 7 |
Find the mean daily income of employees.
Find the class marks of classes 10−25 and 35−55.
Define primary data and secondary data.
Explain the meaning of the following terms: Class mark
Explain the meaning of the following terms: True Class Limits
Can the experimental probability of an event be a negative number? If not, why?
The Empirical relation between the three measures of central tendency is ______.
