| 1 |
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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| 2 |
Mean is affected by change in .......... |
- A. Place
- B. Scale
- C. Rate
- D. None of these
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| 3 |
The spread of observations in a data set is called. |
- A. Average
- B. Dispersion
- C. Central tendency
- D. Mean
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| 4 |
The mean of the squared deviations of x1,(i = 1,2.........,n) observations from their arithmetic mean is called..................... |
- A. Variance
- B. Standard deviation
- C. Range
- D. Mode
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| 5 |
Rang =................. |
- A. X<sub>m </sub>+ X<sub>o</sub>
- B. X<sub>m-</sub>X<sub>o</sub>
- C. X<sub>m/</sub>X<sub>o</sub>
- D. <sub></sub>X<sub>o/</sub>X<sub>m</sub>
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| 6 |
If θ lies in 2nd (second) quadrant then sin θ and cosecθ are: |
- A. negative
- B. positive
- C. zero
- D. undefined
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| 7 |
One minute is denoted by: |
- A. 1'
- B. 1''
- C. 1°
- D. 60'
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| 8 |
On the basic of types of variable of data, the types of frequency distribution are. |
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| 9 |
The mode in the data 1,3,5,3,7,9 |
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| 10 |
A part of the circumference of a circle is called a/an : |
- A. angel
- B. are
- C. circumference
- D. radian
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