While professional singers can command a pitch range of two octaves or more, an untrained voice is usually limited to about "An octave and a half".
<u>Answer:</u> Option C
<u>Explanation:</u>
A musical interval between two notes or between one musical pitch and another with double its frequency, is called an octave. Like A3 to A4 is the interval of one octave. It is a natural mechanism popular as the "basic miracle of music" its application is well spread in most of the musical systems. The pitch in one or more than one octave can be calculated as follows:
For an instance, if one note has a frequency of 440 Hz
- One octave above has a pitch: 2 × 440 Hz = 880 Hz (A5).
- The frequency of two octaves above is: 2 x 880 Hz = 1760 Hz (A6).
- The note one octave below is at 220 Hz
- The ratio of frequencies of two notes an octave apart is hence 2:1.
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Numerous research from affluent nations have found a negative correlation between family size and children's educational attainment, although findings from developing nations range from positive to neutral to negative, depending on the situation.
<h3>What is the relation between education and family?</h3>
Numerous studies of educational attainment in the US have revealed a negative correlation between education and sibling size. In other words, kids with fewer siblings go to school more than kids with more siblings. Even if family socioeconomic indicators are taken into account, there is still a negative correlation between many different measures of children's human capital, such as grades, standardized test scores, and years of completion of school. The theory of finite resources is frequently used in the sociological literature to explain this finding: parents have a restricted amount of time, money, and patience to invest in their children's education, and those who have fewer children can invest more per child.
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<span>Their assigned theme is
"gender".</span>
The group theme is gender as the points outlined in the
description are indicative of the subject. For example femininity and masculinity,
social roles etc. are clearly related to gender and how I is perceived in a
human society. Gender is directed by society through anticipation of conduct
and appearances, and after that is shared starting with one individual then
onto the next, by the procedure of correspondence.