0.7 is a bit high....Btw guys....what were ur answers for gradient and Y-intercept? (i got gradient as 0.7 while my classmates got it as 0.5 and I got my Y-intercept to be 0.06 by using the formula and not the graph, hopefully, that's fine). And for your K question...i got 7.8% meaning they are related, right? and for improvement, one of my points were "2 values of K aren't enough to make a valid conclusion " and improvement was " take more than 2 values and plot a graph". Are my answers fine?