A ball is drawn randomly from a jar that contains 8 red balls, 8 white balls, and 8 yellow ball. Find the probability of the given event. Give answer as a reduced fraction. (a) A red ball is drawn
(b) A white ball is drawn
(c) A red or white ball is drawn

What situation is an example of an observational study

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

The square root of 9x plus 7 plus the square rot of 2x equall to 7