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Find the mean and standard deviation of the specified probability density function. 1) f(x) = (1/8) for [12, 20]
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# Question : Find the mean and standard deviation of the specified probability density function. 1) f(x) = (1/8) for [12, 20] : 2151856

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

Find the mean and standard deviation of the specified probability density function.

1) f(x) = (1/8) for [12, 20]

A) μ = 15.5, σ = 2.28

B) μ = 16, σ = 2.31

C) μ = 1.6, σ = 2.29

D) μ = 15, σ = 2.31

2) f(x) = 4 for [2.25, 2.50]

A) μ = 2.500, σ = 0.070

B) μ = 2.375, σ = 0.072

C) μ = 2.500, σ = 0.069

D) μ = 2.375, σ = 0.144

3) f(x) = 5 for [5.2, 5.4]

A) μ = 5.30, σ = 0.058

B) μ = 5.32, σ = 0.058

C) μ = 5.30, σ = 0.056

D) μ = 5.39, σ = 0.056

4) f(x) = (1/7) for [6, 13]

A) μ = 3.45, σ = 2.02

B) μ = 9.50, σ = 1.73

C) μ = 9.50, σ = 2.02

D) μ = 3.50, σ = 2.02

5) f(x) = 0.04e-0.04x for [0, ∞)

A) μ = 20, σ = 20

B) μ = 25, σ = 25

C) μ = 2.5, σ = 2.5

D) μ = 25, σ = 15

6) f(x) = e-x for [0, ∞)

A) μ = 1, σ = 1

B) μ = 0.5, σ = 1

C) μ = 0.5, σ = 0.5

D) μ = 10, σ = 10

7) f(x) = 0.07e-0.07x for [0, ∞)

A) μ = 1.429, σ = 1.249

B) μ = 14.1, σ = 14.29

C) μ = 14.29, σ = 14.29

D) μ = 14.29, σ = 15.1

8) f(x) = 0.3e-0.3x for [0, ∞)

A) μ = 3.33, σ = 3.33

B) μ = 3.75, σ = 3.75

C) μ = 3.33, σ = 3.50

D) μ = 33.33, σ = 33.33

9) f(x) = 0.6e-0.6x for [0, ∞)

A) μ = 1.67, σ = 1.67

B) μ = 1.5, σ = 1.5

C) μ = 1.71, σ = 1.67

D) μ = 16.67, σ = 16.67

10) f(x) = 0.2e-0.2x for [0, ∞)

A) μ = 0.5, σ = 0.5

B) μ = 6, σ = 6

C) μ = 0.5, σ = 0.6

D) μ = 5, σ = 5

Find the proportion of observations of a standard normal distribution that are between the given z-scores.

11) 0 and 0.35

A) 0.1406

B) 0.1368

C) 0.3632

D) 0.6368

12) 0 and 0.94

A) 0.3289

B) 0.8264

C) 0.1736

D) 0.3264

13) 0 and 0.75

A) 0.4591

B) 0.4599

C) 0.9599

D) 0.2734

14) 0 and 2.5

A) 0.4062

B) 0.9938

C) 0.4938

D) 0.9940

15) 1.26 and 2.15

A) 0.0881

B) 0.5880

C) 0.0898

D) 0.0862

16) -1.2 and 0.5

A) 0.5764

B) 0.5784

C) 0.5601

D) 0.1934

17) -2.34 and -1.1

A) 0.1260

B) 0.6261

C) 0.1263

D) 0.1249

18) -3.0 and 2.65

A) 0.9961

B) 0.0037

C) 0.9946

D) 0.4956

19) 0.11 and 2.11

A) 0.9388

B) 0.4383

C) 0.4423

D) 0.4388

20) -0.75 and 0.75

A) 0.2734

B) 0.7734

C) 0.5467

D) 0.5528

## Solution 5 (1 Ratings )

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