A random number generator is set to generate single digits between 0 and 9. One hundred and fifty random numbers are generated. The probability distribution for this random number generator is given below. What is the mean of this​ distribution? Round to the nearest tenth as needed. x 0 1 2 3 4 5 6 7 8 9 P​(x​) 0.09 0.12 0.11 0.08 0.09 0.13 0.10 0.07 0.10 0.11