(I the Mean of a Normal Probability Distribution Is 60

question 100

Multiple Choice

(i. The mean of a normal probability distribution is 60 and the standard deviation is 5. 95.44 percent
Of observations lie between 50 and 75.
(ii. A z-value of -2.00 indicates that corresponding X value lies to the left of the mean.
(iii) One of the properties of the normal curve is that it gets closer to the horizontal axis, but never
Touches it. This property of the normal curve is called asymptotic.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (i) and (ii) are correct statements but not (iii).
• E) (ii) and (iii) are correct statements but not (i).

---

Definitions:

Ectoderm

The outermost layer of cells or tissue of an embryo in early development, giving rise to the outer layer of skin and nervous system.

Endoderm

The innermost layer of cells or tissue of an embryo in early development, which gives rise to the linings of the digestive and respiratory systems.

Trichomoniasis

A sexually transmitted infection caused by the parasite Trichomonas vaginalis, resulting in itching, burning, and often a greenish discharge.

Blood-sucking Insects

Insects that feed on the blood of humans or animals, often acting as vectors for various diseases.