A sociologist randomly selects single adults for different groups ofthree, and the random variable x is the number in the group who say that the most fun way to flirt is in person. Determine whether a probability distribution is given. If a probability distribution isgiven, find its mean and standard deviation. If a probability distribution is notgiven, identify the requirements that are not satisfied.

X P(x)

0 0.094

1 0.326

2 0.428

3 0.152

Find the mean of the random variable x. Select the correct choice below and, if necessary, fill the answer box to complete

a. mean ___ adults

or

b. The table does not show a probability distribution