The following data represent the calories and sugar, in grams, of various breakfast cereals. a. Compute the covariance. Product Calories Sugar 9.3 (Round to three decimal places as needed. A 250 В 260 3.5 C 280 15.6 310 18.7 E 460 17.5 470 23.3 G 550 22.7 Use the data above to complete parts (a) through (d).

The accompanying data are x = cost (cents per serving) and y = fiber content (grams per serving) for 18 high-fiber cereals rated by a magazine. Cost per Serving Fiber per Serving Cost per Serving Fiber per Serving r = 35 46 49 62 r = 41 19 77 71 30 9.3 10 10 7 6.4 7 7 10 12 10 9.6 7 8 8 Cost per Fiber per Cup Cup 7 12 12 8 USE SALT 49 46 49 (a) Calculate the value of the correlation coefficient for this data set. (Round your answer to four decimal places.) 62 32.8 Interpret the value of the correlation coefficient. O There is a strong positive linear relationship between cost per serving and fiber per serving. O There is a weak negative linear relationship between cost per serving and fiber per serving. O There is a weak positive linear relationship between cost per serving and fiber per serving. O There is no correlation between cost per serving and fiber per serving. O There is a strong negative linear relationship between cost per serving and fiber per serving. 19 53 (b) The serving…

What is P(C and Z)?

The following data refers to yield of tomatoes (kg/plot) for four different levels of salinity. Salinity level here refers to electrical conductivity (EC), where the chosen levels were EC = 1.6, 3.8, 6.0, and 10.2 nmhos/cm. (Use i = 1, 2, 3, and 4 respectively.) 1.6: 59.4 53.4 56.3 63.2 58.4 3.8: 55.9 59.7 52.7 54.2 6.0: 51.7 48.2 53.9 49.0 10.2: 44.3 48.3 40.7 47.2 46.7 W23 = W 24 = W34 = USE SALT Apply the modified Tukey's method to identify significant differences among us. (Round your answers to two decimal places.) W12 = W13 = W14= Which pairs are significantly different? (Select all that apply.) Othe group and the 3.8 group the 1.6 group and the 6.0 group the 1.6 group and the 10.2 group the 3.8 group and the 6.0 group the 3.8 group and the 10.2 group O the 6.0 group and the 10.2 group There are no significant differences.