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
Answered by Rishi J. Maths tutor

1933 Views

See similar Maths 13 Plus tutors

Related Maths 13 Plus answers

All answers ▸

Factorise the following a) 8x + 6y b) 7xy + 3xzy c)5xyz - 20x^2y^2z


w and x are whole numbers. w >40, x<30. Work out the smallest possible value of w-x.


If Tom has a bag of balls with 7 orange, 6 green and 11 blue, what is the probability that he will pick a green ball?


Show that 3/10 + 2/15= 13/30


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning