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  2. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    To calculate a percentage of a percentage, convert both percentages to fractions of 100, or to decimals, and multiply them. For example, 50% of 40% is: ⁠ 50 / 100 ⁠ × ⁠ 40 / 100 ⁠ = 0.50 × 0.40 = 0.20 = ⁠ 20 / 100 ⁠ = 20%. It is not correct to divide by 100 and use the percent sign at the same time; it would literally imply ...

  3. Mean - Wikipedia

    en.wikipedia.org/wiki/Mean

    For example, the geometric mean of five values: 4, 36, 45, 50, 75 is: ... The number of values removed is indicated as a percentage of the total number of values.

  4. We are older parents in our late 50s with a 15-year-old son ...

    www.aol.com/finance/older-parents-50s-15-old...

    In fact, research from GoBanking Rates found that a nest egg of $1 million would only last roughly 15 years in some of the more expensive states, like Hawaii and New York — and this doesn’t ...

  5. Educational attainment in the United States - Wikipedia

    en.wikipedia.org/wiki/Educational_attainment_in...

    For adults aged between 25 and 30, the percentage of either high school graduates or GED obtainers was roughly 50% in 1950 versus 90% today. [ 3 ] According to The United States Census Bureau, [ 4 ] from 1940 to 1980, respondents were asked to what their highest grade or year of school completed was.

  6. Sexual abuse in primary and secondary schools - Wikipedia

    en.wikipedia.org/wiki/Sexual_abuse_in_primary...

    This study investigated the prevalence of child sexual abuse among day secondary school pupils in Gweru, Zimbabwe. The sample comprised 268 secondary pupils (50% female; mean age=15.42, standard deviation=1.376). Data were collected by administering the Child Abuse Screening Tool Children's Version (ICAST-C).

  7. Student–teacher ratio - Wikipedia

    en.wikipedia.org/wiki/Student–teacher_ratio

    For example, figures may be biased as follows: if one classroom has a 30:1 ratio and another has a 10:1 ratio, the school could thus claim to have a 20:1 ratio overall. In schools, such ratios are indicative of possible staff changes. If the student–teacher ratio is 50:1, the school will probably consider hiring more teachers.

  8. Freshman 15 - Wikipedia

    en.wikipedia.org/wiki/Freshman_15

    The term "Freshman 15" is an expression commonly used in the United States and Canada to refer to weight gain during a student's first year in college.Although the 15 refers to a 15 lb. (6.8 kg) weight gain, the expression can apply to weight gain in general.

  9. Homeschooling in the United States - Wikipedia

    en.wikipedia.org/wiki/Homeschooling_in_the...

    From 2003 to 2007, the percentage of students whose parents reported homeschooling to provide religious or moral instruction increased from 72 percent to 83 percent. In 2007, the most common reason parents gave as the most important was a desire to provide religious or moral instruction (36 percent of students).