1) A manufacturer states that their 1.5kg tins of chocolate contain a minimum of 60 chocolates. A sample of 20 tins of chocolates were selected and the number of chocolates in each tin was recorder. 63 58 63 57 60 62 57 72 60 61 56 63 62 63 58 61 63 59 58 60. a) calculate the mean media and mode. b ) calculate the range and interquartile range. c) how do the results obtained compare with the manufacturer claim of a minimum of 60 % in each tin?

i need on these three questions. find standard form equation of line perpendicular to y = (2/3)x - 8 that goes through the point

the equation of a line is -6x-2y=-18 what is the x 3 answers sep 21, 2015

finding the critical point for f(x,y)=(x^2)*y+y^3 1 answer mar 10, 2013

more results from answers.yahoo.com

step-by-step explanation:

your answer would be 12

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."