00:58 = Using appropriate units 04:36 = Standard Form 08:18 = Ratios, fractions and percentages (percentage change) 13:13 = Using scales to measure 15:46 = Estimating bacteria grown over a certain length of time 19:11 = Significant figures 21:46 = Chance vs probability 24:20 = Mean, median and mode 25:20 = Scatter graphs to identify correlation 26:19 = Magnification formula (changing subject of an equation) 28:05 = Selecting a statistical test 29:09 = Student's t test 33:54 = Correlation coefficient 39:57 = Standard deviation 42:24 = Percentage uncertainty/error 42:52 = Symbols that you need to know 44:21 = Circumference and area of a circle 44:54 = Surface area and volume (+ SA:V) of triangular prisms, cylinders, and spheres)
hiya I love your youtube videos theyre so useful in my revision I just wanted to ask are you going to make videos for the other required practicals? :))
Hi there, for the magnification question using the scale bars, i have watched several videos and they all say u dont need to measure the organelle, they say u measure the scale bar and then convert it to units given and use the magnification question as usual.
At 38:40 in my booklet that we use in school says the formula is 1 - {6x sum of d^2, every thing in bracket over n^3 - n] obviously in my exam ill use this cuz this is what they tought us but i dont know if you'll get the same answer for the same question. Edit: just to be sure the title of this equation is called spearman rank correlation test
Hi, I did not go through the chi-square test just so the video wasn't ultra-long. I go through it in detail in my "Inheritance" video, which should be linked in the corner of the video! :)
