The probability that a normal variate X lies in the interval (μ-σ, μ+σ) is ___________

(a)

0.0027

(b)

0.9973

(c)

0.6826

(d)

0.9544

In case of normal distribution, skewness is ___________

(a)

1

(b)

0

(c)

2

(d)

3

For a normal distribution if the mean is m, mode is n and median is m, then ___________

(a)

m > m₁ > m₀

(b)

m < m₁ < m₀

(c)

m ≠ m₁ x m₀

(d)

m = m₁ = m₀

If the mean of the binomial distribution is 25, then its standard deviation lies in the interval ___________

(a)

[0,5)

(b)

(0,5]

(c)

[0,25]

(d)

(0,25]

The probability that a person will hit a target in shooting practice is 0.3. If he shoots 10 times, the probability that he hits the target is ___________

(a)

1

(b)

1-(0.7)¹⁰

(c)

(0.7)¹⁰

(d)

(0.3)¹⁰