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1) If “X” is normally distribution with >µ= 8 and S.D. 4, then P(6≤X≤10) may be______________? a. 0 b. -0.32 c. 1.2 d. 0.2684
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2) In normal distribution β1 = 0 and β2 is equal to _____________? a. 0.5 b. 1 c. 2 d. 3
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3) For +ve and -ve skewed, check the sign of _______? a. β1 b. µ2 c. β2 d. µ3
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4) Total area under the normal curve is________? a. 100 b. 1 c. 50% d. 1%
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5) Normal distribution is _____ distribution? a. Symmetrical b. non-symmetrical c. + vely skewed d. -vely skewed
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6) Area to the right of (z=0) is the area for ____ values of z? a. Zero b. Negative c. Positive d. None of these
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7) The standardized normal variate z means_________ away from the mean? a. Mean b. S.D. c. Variance d. None of these
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8) In a normal distribution, what is the z score associated with the mode ? a. -1 b. 0 c. +1 d. None of these
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9) If X ˜ N (µ, σ2) then Z ˜__________? a. N(0, σ2) b. N(1, σ2) c. N(0, 1) d. N(1, 1)
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10) Normal distribution is the distribution of _______________? a. Discrete r.v. b. Continuous r.v. c. Qualitative variable d. Quantitative variable
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