ANSWER
0.2546
EXPLANATION
The movie theatre's daily revenue, X, is normally distributed with a mean of $3152 and a standard deviation of $1281.
We have to find the probability that the theatre generates more than $4000 in revenue on a randomly selected day,

To find this probability, we have to standardize X using the formula,

So the probability is,

Now, we have to look up this z-value in a z-score table. These tables usually show the area to the left of the z-score - this means that they show the probability for a z less than the z-score, so we have to find the complement,

In a z-score table,
So the probability is,

Hence, the probability that the theatre generates more than $4000 in revenue on a randomly selected day is 0.2546.