3. a box has 10 red cubes, 5 blue cubes
and 2 green cubes. If a cube is
randomly picked from the box, which
coloured cube is:
(a) least likely to be picked?
(b) most likely to be picked?​

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .