between 295 and 385 grams? 9) Z-scores , normal probability, x-values: The mean incubation time of fertilized chicken eggs kept at 100.5 degree Fahrenheit in a still-air incubator is 21 days. Suppose that the incubation times are approximately normally distributed with a standard deviation of 1 day. a. Determine the probability that a randomly selected fertilized chicken egg hatches between 19 to 21 days. b. Determine the z-scores for the incubation times that make up the middle 92 percent of fertilized chicken eggs. 10) Scatter Plot and Correlation: Your FICO score is used to determine your creditworthiness. It is used to