Final answer:
The value in the middle of the interval 0.555 < p < 0.777 is 0.666.
Step-by-step explanation:
To find the value that is in the middle of the interval, we need to find the average of the two given numbers. The given interval is 0.555 < p < 0.777. To find the middle value, add the two numbers together and divide by 2:
(0.555 + 0.777)/2 = 0.666
Therefore, the value in the middle of the interval is 0.666.