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Just note that the probability of a defect when the manager is on duty is 0.02, otherwise it is 0.03. Therefore P(M|D) = 0.39 x 0.02 / (0.39 x 0.02 + 0.61 x 0.03) = 0.2988...

Farhanthestudent005, did you work out the answer with tickboom’s reply? Probability of winning first season: P(W1) = 0.52 Probability of winning first season & second seasons: P(W1)*P(W2) = 0.39 Probability of winning second season: P(W2) = 0.39/0.52 = 0.75

This is really important advice - it applies to all subjects, at school, Uni & work.

I suspected that you were aware there were counter control mechanisms to maintain homeostasis but the opposing regulators aren’t centred on water - they are focused on sodium because by its osmotic activity, sodium movement controls water movement. So, aldosterone retains sodium (& therefore...

Your statements about aldosterone are correct but several statements about ADH require amendment: 1. ADH (also called vasopressin) is produced by the hypothalamus and released by the posterior pituitary. 2. The action of ADH on the kidney increases water reabsorption (by increasing the number...

When SNPs occur in coding regions, the majority are deleterious/pathogenic/harmful and either not compatible with life or sadly, affect survival to reproductive age. Therefore such SNPs are not propagated to offspring/future generations. SNPs in noncoding regions may have no effect or only mild...

These are problem solving exercises - usually all the given information (words & diagrams) are relevant and the challenge is to work out what order to use the information. 1. The total area of 2016 cm^2 is divided into 7 equal triangles, so each triangle is 288 cm^2. 2. Triangle BIE comprises...

You’ve studied maths std 2 and physics, as well as engineering & chemistry, so you’ve had experience studying several difficult subjects. If you’re studying the course yourself, you don’t have to waste time doing all the questions in each exercise once you’ve mastered the concept(s). My son...

You’ve done Maths Standard 2 and are doing physics. I suspect you are capable of learning Adv Maths & Math Ext1 by yourself. There are now so many YouTube tutorials on various maths topics and helpful contributors in this forum. Best wishes.

Applicants from disadvantaged backgrounds might get to an interview even if their marks alone aren’t as competitive, but interview panels have to evaluate whether they’re likely to be able to complete the degree and be suitable for a medical career.

It usually takes me thirty seconds to do a quick sketch of two cycles of the sine wave from -2π to 2π, then add the cosine wave which is π/2 (90 deg) out of phase, to visualise all the sine & cosine relationships listed in the different quadrants.

The answer to part a) is 10. The details for part b), is that if you have four different alleles, designated A1, A2, A3 and A4, the ten possible genotype combinations are A1/A1, A1/A2, A1/A3, A1/A4, A2/A2, A2/A3, A2/A4, A3/A3, A3/A4 and A4/A4. Note: Not by coincidence, the number of genotypes...

You’re essentially doing the steps in a different order. The approach you’ve been taught is to i) set out the general equation of the line ii) substitute the negative reciprocal of the slope coefficient of the original equation & iii) substitute the point coordinates, whereas you have performed...

Yes, all small water soluble ions can move freely through the membrane of the Bowman’s capsule. Amino acids are also small enough to get through, but as you’ve already stated, plasma proteins are too large to get through the intact membrane. When the kidneys become damaged (by toxins...

In questions like this, only one statement (of the three) has to be incorrect for the option to be incorrect.

Jimmysmith560 is absolutely correct. A change in allele frequency is an effect of both genetic drift and/or selection pressure, but the two causes are completely different. Genetic drift occurs even in isolated populations irrespective of external factors. Selection pressure is from external...

i) 1 in 3 probability of any number other than six. ii) 1 in 3 probability in i) is split five ways with the other numbers, so (1/3) x (1/5) = 1/15 or 1 in 15 probability of rolling a ‘2’. iii) 1 in 15 probability of rolling a ‘2’, 1 in 15 probability of rolling a ‘4’ and 2 in 3 probability of...

I can’t offer any suggestions to test your query ‘How does the shape of cells affect the exchange of substances?‘ If however, you are still stuck for ideas, I wonder if mapping movement of dyed water in split celery stalks is a valid experiment design for module 2. If so, suggest splitting a...

There’s a trivial typo in line 4: 32 - 48 = -16

Have you seen this PowerPoint presentation? Although I don’t know what the HSC syllabus requires, it covers kidney function, osmoregulation & dialysis reasonably well. https://www.slideshare.net/dabagus/113-the-kidney-osmoregulation