Students helping students, join us in improving Bored of Studies by donating and supporting future students!
post the question.Can someone help me in HSC 2005 - qn 9... I just can't seem to get it
it's B (30)okies here it is
oops, how embarassing. I'll try again:Thankyou!!
the answers says C- 35![]()
gah it's frustrating
Thankyou anyway!!
Oh I see, Thanks a billion!oops, how embarassing. I'll try again:
Do you see how at 600 on the cumulative frequency axis, if you go across, it meets the score axis between the columns 75 & 85. This means you have to average out these scores to get Q3.
ie (75 + 85)/2 = 80
And then, 80 - 45 = 35 (Q1 = 45)