Write the Word or Phrase That Best Completes Each Statement

Essay

Write the word or phrase that best completes each statement or answers the question.
-The following data represents the average percent of possible sunshine for a certain city in Indiana. $$\begin{array} { l | c } \text { Month, x } & \begin{array} { c } \text { Average Percent of } \\\text { Possible Sunshine }\end{array} \\\hline \text { January, 1 } & 46 \\\text { February, 2 } & 51 \\\text { March, } 3 & 55 \\\text { April, } 4 & 60 \\\text { May, } 5 & 68 \\\text { June, } 6 & 73 \\\text { July, } 7 & 75 \\\text { August, 8 } & 74 \\\text { September, } 9 & 68 \\\text { October, 10 } & 62 \\\text { November, 11 } & 41 \\\text { December, } 12 & 38\end{array}$$ Draw a scatter diagram of the data for one period. Find the sinusoidal function of the form y = A sin (ωx - Φ) + B that
fits the data. Draw the sinusoidal function on the scatter diagram. Use a graphing utility to find the sinusoidal
function of best fit. Draw the sinusoidal function of best fit on the scatter diagram.