Eleven pet owners were asked how many pets they had in total. The results are given below. 1, 1, 2, 3, 4, 5, 5, 6, 6, 6, 7 - Two more owners are asked how many pets they have. Including their results the mean goes down to 4 but the mode is unchanged from

1, 1, 2, 3, 4, 5, 5, 6, 6, 6, 7 - n=11mean = 46/11mode= most common so 6after n=13, mean is 413*4=52so 52-46=64 and 2 works1 and 5 not as mode changes3 and 3 not as mode changes

RJ

Related Maths 13 Plus answers

All answers ▸

Factorise the following equation fully: 2x^2+12x


If a triangle has all equal length sides, what is the angle of one of the corners?


Given a=2, b=-5, c=0.5, d=-20 ... find abc, and 2d+10c


Solve the equation: 3x - 5.5 = 1/2