Nursing quiz

1. What is the mode in statistics?

A. Value of middle observation

B. Arithmetic mean

C. Most commonly occurring value

D. Difference between the highest and lowest value

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2. Square root of deviation is called:

A. Standard deviation

B. Standard error

C. Mean deviation

D. Range

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3. In normal distribution curve, sampling values following:

A. Mean=Median

B. Mean=S.D

C. Mean=Variant

D. Mean= 2 x median

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4. Which is false about normal distribution curve?

A. In a normal curve 95% of values in within 1 SD

B. Mean, mode and median coincidence

C. Median is mid value

D. Mode is commonest occurring value

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5. Shape of a normal curve is:

A. Symmetrical

B. Curvilinear

C. Linear

D. Parabolic

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6. The area under normal distribution curve for S.D. of 2 is:

A. 68%

B. 95%

C. 97.5%

D. 100%

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7. In a standard normal curve the area between one standard deviation on either side will be:

A. 68%

B. 85%

C. 97.5%

D. 99%

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8. Normal distribution curve is explained using:

A. Mean and sample

B. Mean and median

C. Median and standard deviation

D. Mean and standard deviation

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9. In a highly skewed distribution central tendency is better explained by:

A. Mode

B. Median

C. Standard deviation

D. Mean

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10. Which is false about normal distribution curve?

A. 95% of values fall within 1 S.D.

B. Mean, median and mode coincide

C. Median is the midvalue

D. Mode is commonest occurring value

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11. Right sided skewed distribution causes:

A. Median is more than mean

B. S.D. is more than variance

C. "Tail" to the left

D. "Tail" to the right

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12. In a normal distribution curve, the true statement is:

A. Mean = SD

B. Median = SD

C. Mean = 2 Median

D. Mean = Mode

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13. If the mean is 230 and the standard error is 10, the 95% confidence limits will be:

A. 210 to 250

B. 220 to 240

C. 225 to 235

D. 230 + or -210

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14. Among the following which is most significant P value?

A. 0.005

B. 0.05

C. 0.01

D. 0.1

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15. The number of degrees of freedom in a table of (4x4):

A. 4

B. 8

C. 9

D. 16

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