Final answer:
The probability of a 68-year-old non-Hispanic black male living to be 78 years old depends on various factors such as average life expectancy. Based on the provided information, we can estimate the remaining years of the individual's life and use it to calculate the probability.
Step-by-step explanation:
The probability of Earvin, the 68-year-old, living to be 78 years old can be calculated using life expectancy data. However, it's important to note that life expectancy is an average and can vary based on various factors such as race, gender, and health conditions. Since Earvin is a non-Hispanic black male, we can consider the average life expectancy for that demographic.
According to the provided information, the average life expectancy for Black males was approximately 74.7 years in 2018. Since Earvin is currently 68 years old, we can calculate the remaining years he is expected to live on average by subtracting his current age from the average life expectancy: 74.7 - 68 = 6.7 years.
Based on this estimation, the probability of Earvin living to be 78 years old would be the probability of surviving the remaining 6.7 years. However, without additional information or data, it's not possible to calculate the exact probability.