| 1 |
In case of symmetrical distribution |
- A. μ<sub>1</sub> = μ<sub>2</sub> = μ<sub>3</sub> = μ<sub>4</sub>
- B. β<sub>1</sub> = β<sub>2</sub>
- C. P<sub>1</sub> < P<sub>2</sub>
- D.
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| 2 |
The moment coefficient of skewness is |
- A. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">β<sub>1</sub></span>
- B. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">β<sub>2</sub></span>
- C. S<sub>k</sub>
- D. m<sub>3</sub>
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| 3 |
The total area under the normal curve is________. |
- A. Zero
- B. Equal
- C. Unity
- D. True
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| 4 |
The range of a normal distribution is |
- A. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">—∞ to 1</span>
- B. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">—∞ to 0</span>
- C. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">—∞ to + </span><span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">∞</span>
- D. 0 to <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">∞</span>
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| 5 |
The point of inflection in normal distribution are _______. |
- A. μ - σ, μ + σ
- B. μ - σ, μ + 2σ
- C. μ, σ
- D. None of these
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| 6 |
Total probability under the normal curve is |
- A. 1
- B. 0
- C. -1
- D. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">∞</span>
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| 7 |
In case of normal distribution maximum value of ordinate is |
- A. <span style="color: rgb(0, 0, 0); font-family: 'Lucida Sans Unicode', 'Lucida Grande', sans-serif; font-size: 18px; line-height: 23.390625px;">μ</span>
- B. Zero
- C.
- D.
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| 8 |
The maximum ordinate of a normal curve is at X = ________. |
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| 9 |
Second moment about mean is also called |
- A. mean
- B. variance
- C. skewness
- D. standard deviation
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| 10 |
The probability density function has ------------------ value for every value of x. |
- A. negative
- B. positive
- C. minimum
- D. maximum
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