Achocolate factory produces mints that weigh 10 grams apiece. the standard deviation of the weight of a box of 10 mints is 3 grams. you buy a box of mints that weighs 95 grams. what is your confidence that the box you bought did not come from the factory?
a 90%
b 95%
c 10%
d 5%

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.