In a Sample of 20 Hand-Held Calculators,15 Are Known to Be

question 13

Multiple Choice

In a sample of 20 hand-held calculators,15 are known to be nonfunctional.If 7 of these calculators are selected at random,what is the probability that exactly 5 in the selection are nonfunctional? Round to the nearest thousandth.

• A)0
• B)0.714
• C)0.387
• D)0.467
• E)0.750

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Definitions:

Estrogen

A group of steroid hormones that play an essential role in the development and regulation of the female reproductive system and secondary sexual characteristics.

Testosterone

A type of steroid hormone essential for developing male reproductive organs and secondary sexual traits.

Prenatal Development

The process of growth and development within the womb from conception to birth, comprising various stages including the embryonic and fetal stages.

Partly Masculinized

Referring to the presence of physical or behavioral traits typically associated with males, to some degree, in an individual.