The accompanying table shows eleven altitudes​ (in thousands of​ feet) and the speeds of sound​ (in feet per​ second) at these altitudes. Complete parts​ (a) through​ (d) below. Altitude, x    Speed of sound, y 0    1117.3 5    1096.7 10    1076.3 15    1057.7 20    1037.8 25    1015.1 30    995.3 35    970.6 40    967.9 45    967.9 50    967.9 (b) Calculate the sample correlation coefficient r. (c) Describe the type of​ correlation, if​ any, and interpret the correlation in the context of the data

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