1. Malaysia is a tropical country. Consequently, it has relatively uniform temperature and daylength throughout the year. A group of engineers hope to use average daily temperature f, in degrees celsius, to estimate solar radiation r in kWh/m. For the measurements, we have the following summary statistics. { = 27.29, 6, =1.35, F =18.06, 8, = 6.29, cov(t, r) = 6.58 (a) The correlation is 0.775. What does that value indicate about the strength of the linear relationship between average daily temperature and solar radiation? (b) Give the regression line that predicts solar radiation from temperature. (c) What is the predicted value for the solar radiation on a warm day with a temper- ature of 32 degrees celsius