Myopia (IE

question 1

Multiple Choice

Myopia (i.e. ,nearsightedness) is a result of environmental and genetic factors.In Singapore,the percent of military personnel having myopia increased dramatically over a 20-year period.Based on this fact,researchers wondered if the effect of the environment might be stronger and the genetic effect much less pronounced than previously thought.To study this issue,data from a random sample of 429 men,ages nineteen to twenty-five,in the Singapore military were obtained.Among other things,the men in the study were classified as to whether or not they had myopia and whether at least one of their parents had myopia.The results are presented in the table below. Of those men with myopia,what proportion had at least one parent with myopia?

• A)0.410
• B)0.590
• C)0.881
• D)0.907

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Definitions:

Noncumulative Preferred Stockholders

Preferred stockholders whose dividends do not accumulate if not declared in a given period, missing dividends are not required to be paid in the future.

Current-Year Dividends

Current-Year Dividends refer to the distribution of a portion of a company's earnings to its shareholders, declared and paid within the current fiscal year.

Cumulative Preferred Stockholder

A cumulative preferred stockholder is an investor who owns preferred shares that accumulate unpaid dividends, ensuring they are paid out before any dividends on common stock.

Dividends in Arrears

Dividends on preferred stock that have been declared but not yet paid to shareholders.