I the Probability of a Particular Outcome, Designated X, Must

question 24

Multiple Choice

i. The probability of a particular outcome, designated X, must always be between 0 and 100 inclusive. ii. A random variable is a quantity resulting from a random experiment that can assume different values by chance.
iii. The mean of a probability distribution is referred to as its expected value.

• 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) (ii) and (iii) are correct statements but not (i).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

Circular DNA

DNA that forms a closed-loop structure, found in bacteria, mitochondria, and chloroplasts, distinct from the linear DNA of most eukaryotes.

Gymnosperms

A group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes, notable for not having flowers or fruit.

Wingless Insects

Insects that lack wings at all stages of their life cycle, adapted for different modes of life than their winged counterparts.

Fish With Jaws

Refers to gnathostomes, which are vertebrates that possess true jaws, a significant evolutionary feature allowing them to exploit a wider variety of food sources.