The plus-or-minus quantity .12 is called the margin of error of the sample mean associated with a 95% confidence level. It is also correct to say ``we are 95% confident that is within .12 of the sample mean 3.05''. However, .12 is a large number.
DEFINITION of 'Investing'. The act of committing money or capital to an endeavor (a business, project, real estate, etc.) with the expectation of obtaining an additional income or profit. Investing also can include the amount of time you put into the study of a prospective company, especially since time is money.
(endow) to invest sb with sth â investire qn di qc. 2. vi to invest in (company, property) â investire in, fare (degli) investimenti in; (acquire) â comprarsi. invest 1 (inËvest) verb (with in) to put (money) into (a firm or business) usually by buying shares in it, in order to make a profit.