# Question

1. Mean of X

2. Variance of X

3. Probability of X being less than its mean

4. Probability of X being less than μ + σ

5. Standard deviation of Z

6. Probability that a z-score based on X is less than 1 in magnitude

7. Proportion of a normal distribution that is more than 20 σ from m

8. Difference between value of P(Z < – x) and value of P(Z > x)

9. Distribution of the random variable μ +σZ

10. Probability that Z > 1.96 plus the probability that Z < –1.96

(a) 1 / 2

(b) P(Z < 1)

(c) 0.05

(d) 2/3

(e) 1 / (1 googol)

(f) m

(g) σ2

(h) 1

(i) 0

(j) N(μ, s σ2)

2. Variance of X

3. Probability of X being less than its mean

4. Probability of X being less than μ + σ

5. Standard deviation of Z

6. Probability that a z-score based on X is less than 1 in magnitude

7. Proportion of a normal distribution that is more than 20 σ from m

8. Difference between value of P(Z < – x) and value of P(Z > x)

9. Distribution of the random variable μ +σZ

10. Probability that Z > 1.96 plus the probability that Z < –1.96

(a) 1 / 2

(b) P(Z < 1)

(c) 0.05

(d) 2/3

(e) 1 / (1 googol)

(f) m

(g) σ2

(h) 1

(i) 0

(j) N(μ, s σ2)

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