Assume That Male and Female Births Are Equally Likely and That

question 22

Multiple Choice

Assume that male and female births are equally likely and that the birth of any child does not affect theprobability of the gender of any other children. Find the probability of at most three girls in ten births.

• A) 0.172
• B) 0.300
• C) 0.003
• D) 0.333

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Definitions:

Progesterone

Sex hormone produced by ovaries; prepares a female body for pregnancy and helps maintain a pregnancy.

Estrogens

Sex hormones secreted by ovaries; function in reproduction and cause development of female secondary sexual characteristics.

Corpus Luteum

A temporary endocrine structure in female ovaries that is involved in the production of relatively high levels of progesterone, moderate levels of estradiol, inhibin A, and small amounts of estrogen.

Testes

Male reproductive organs that produce sperm and hormones, such as testosterone.