Given binomial probability is P(55 < x < 60), it represents the probability of getting between 55 and 60 successes.
The discrete midpoint values are 55, 56, 57, 58, 59, 60. The corresponding interval for the continuous normal distribution is 54.5 < x < 60.5.
Thus, using the continuity correction, the binomial probability P(55 < x < 60) can be converted into normal distribution probability P(54.5 < x < 60.5).