| 1 |
The most frequent occurring observation in a data set is called: |
- A. Mode
- B. Median
- C. Harmonic mean
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| 2 |
Mode from the following data ,4.4,5.5,6.6,7.7,8.8,6.5,6.5,7 is.......... |
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| 3 |
Sec<sup>2</sup> θ -tan<sup>2</sup>θ =______________. |
- A. sec<sup>2</sup>θ
- B. cos<sup>2</sup>θ
- C. 1
- D. sin<sup>2</sup>θ
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| 4 |
During frequency distribution number of groups should be between........ |
- A. 5 and 10
- B. 10 and 15
- C. 10 and 20
- D. 5 and 15
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| 5 |
A cumulative frequency table is called. |
- A. Frequency distribution
- B. Data
- C. Less then frequency distribution
- D. None of these
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| 6 |
The positive square root of mean of the squared deviation of X,{1=1,2,3,.......n) observations from their arithmetic mean is called. |
- A. Harmonic mean
- B. Range
- C. Standard deviation
- D. Variance
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| 7 |
Sum of the deviations of the variable "X" from its mean is always: |
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| 8 |
The measure which determines the middlemost observation in a data set is called................... |
- A. Median
- B. Mode
- C. Mean
- D. Variance
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| 9 |
A grouped frequency table is also called: |
- A. Data
- B. Frequency distribution
- C. Frequency Polygon
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| 10 |
The average pocket money of 30 students is Rs.20/- , The total amount in the class is: |
- A. Rs.20/-
- B. Rs.30/-
- C. Rs.300/-
- D. Rs.600/-
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