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 normal monthly precipitation for a certain city in California. $$\begin{array} { l | c } \text { Month, x } & \text { Normal Monthly } \\\text { Precipitation, inches } \\\hline \text { January, 1 } & 6.06 \\\text { February, 2 } & 4.45 \\\text { March, } 3 & 4.38 \\\text { April, } 4 & 2.08 \\\text { May, 5 } & 1.27 \\\text { June, } 6 & 0.56 \\\text { July, } 7 & 0.17 \\\text { August, 8 } & 0.46 \\\text { September, } 9 & 0.91 \\\text { October, 10 } & 2.24 \\\text { November, 11 } & 5.21 \\\text { December, 12 } & 5.51\end{array}$$ Draw a scatter diagram of the data for one period. Find a 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.