Choose the statement that is not true.

a* (* is really a dot in the picture)

(a)this figure is represented by a dot.
(b)this figure has no length or thickness.
(c)this figure is a part of all lines, line segments, planes, and angles.
(d)this figure has width.

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 .