Algerba

posted by .

would you expect a positive, a negative, or no association between the number of hours of daylight during a day and the number of hours of darkeness?

  • Algerba -

    Generally, a negative association. When one is increasing, the other is decreasing, except in the very Northern or Southern latitudes where there is no sunrise or sunset for half the year.

  • Algerba -

    Thanks BobPursley!

  • Algebra -

    All of the hours of a day are either daylight or darkness. In the Northern Hemisphere we have long nights and short days in the winter. We have short nights and long days in the summer.

    What kind of association is this?

  • Algebra -

    A Negative Association?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. 11th grade-Calculas

    The number of hours of daylight D depends upon the latitude and the day t of the year and is given by the equation : D(t)=12+Asin(((2pi)/(365))(t-80)) where A depends only on the latitude (and not t). for latitude 30 degress, A is …
  2. calculus

    The number of hours of daylight D depends upon the latitude and the day t of the year and is given by the equation : D(t)=12+Asin(((2pi)/(365))(t-80)) where A depends only on the latitude (and not t). for latitude 30 degress, A is …
  3. trig

    A city averages 14 hours of daylight in June, 10 in December, 12 in both March and September. Assume that the number of hours of daylight varies sinusoidally over a period of one year. Write an expression for n, the number of hours …
  4. math

    In Philadelphia the number of hours of daylight on day t (where t is the number of days after Jan. 1) is modeled by the function L(t)= 12+2.83sin(2pi/365(t-365)) A) Which days of the year have about 10 hours of daylight?
  5. Math for Ms. Sue please! Last math questions!

    1. What is the term for data that are grouped closely together?
  6. Precalculus II

    1. The number of hours of daylight D(t) in Halifax at day t can be approximated by the function D(t) = a sin(bt + c) + d, where t = 1 on January 1, and t = 365 on December 31. The period is one year, and the cycle starts on the vernal …
  7. Pre-Calculus HELP!!

    The length of a day in Philadelphia, Pennsylvania, is given by the sinusoidal function, f(t), which represents the number of hours of daylight t days into the year: f(x)=11+2.2sin(2pi/365)t-1.25).How many hours of daylight are there …
  8. Pre Calculus HELP!?

    The length of a day in Philadelphia, Pennsylvania, is given by the sinusoidal function, f(t), which represents the number of hours of daylight t days into the year: f(t)= 10+2.8sin(2pi/365)*(t-1.35). How many hours of daylight are …
  9. math

    1. what is the term for data that are grouped closely together?
  10. Trignometry

    In Philadelphia the number of hours of daylight on day t (t is the number of days after january 1) is modeled by the function L(t)= 12+2.83sin((2*Pi)/365(t-800) a. Which day have about 10 hours of daylight?

More Similar Questions