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**671. The shape of normal curve depends upon ?**

A. None

B. Mean

C. Quartile**D. Standard Deviation**

E. Mean Deviation

**672. Which of the following parameter control the relative flatness of normal distribution?**

A. None

B. Mode**C. Standard Deviation**

D. Mean

**673. Area Under the normal curve on either side of mean is _____________?**

A. 1

B. Mean value**C. 0.5**

D. 2

E. -1

**674. In normal distribution Q1=_________?**

A. u + .6745 (S.D.)

B. u – .7979 (S.D.)

C. u + .6745 (S.D.)**D. u – .6745 (S.D.)**

**675. Every distribution tends to ____ distribution?**

A. Small

B. ∞**C. Large**

D. Finite

**676. Standard normal variable Z is___________?****A. x – µ /σ**

B. µ- x /σ

C. σ – x/ µ

D. x – σ/ µ

**677. Area of normal distribution total is equal to _______?**

A. Two**B. One**

C. Four

D. Three

**678. In normal distribution, mean ______= Mode?**

A. Quartile

B. Mean deviation**C. Median**

D. S.D.

**679. Normal distribution is the distribution of _______________?**

A. Discrete r.v.**B. Continuous r.v.**

C. Qualitative variable

D. Quantitative variable

**680. If X ˜ N (µ, σ2) then Z ˜__________?**

A. N(0, σ2)

B. N(1, σ2)**C. N(0, 1)**

D. N(1, 1)