Which situation describes a correlation that is not a causal relationship?
(1) the number of miles walked and the total calories burned
(2) the population of a country and the census taken every ten years
(3) the number of hours a tv is on and the amount of electricity used
(4) the speed of a car and the number of hours it takes to travel a
given distance

(2) the population of a country and the census taken every ten years. Because even though they are kind of related, one doesn't cause or result from  the other.

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )