Looking at the means of the samples, which of these values is least likely to be the mean of the population the samples were taken from? 12.3
18.4
19.0
19.5

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

Me because some of question i don’t understand

What is the solution to the equation below? 3/x-2+6=square root x-2 +8