Let the random variable X be a random number with the uniform density curve given below.

P(0.6 < X < 0.9) is

I can not see your graph. You can not copy and paste here, but find the area in that region

To find the probability P(0.6 < X < 0.9) for a uniform distribution, we can use the formula:

P(a < X < b) = (b - a) / (upper limit - lower limit)

In this case, the lower limit is 0 and the upper limit is 1. So, the formula becomes:

P(0.6 < X < 0.9) = (0.9 - 0.6) / (1 - 0)

Calculating that, we get:

P(0.6 < X < 0.9) = 0.3

Therefore, the probability P(0.6 < X < 0.9) is 0.3.