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How many sociological schools of thought should I discuss in a typical essay?

Generally, while this differs in term of exam board specification and type of question, two or three as focal points seems to be a fairly good rule of thumb. Any more prevents adequate discussion and means y...
RB
Answered by Rosa B. • Sociology tutor
2916 Views

How can I find the frequency of genotype Bb in a population given that the frequency of BB is 0.49? (Where B = dominant allele, b = recessive allele on the same gene).

The proportion of the population with genotype Bb can be calculated using the two equations of the Hardy-Weinberg principle. These equations are: p + q = 1 where: p = frequency of the dominant allele (B) q =...
CA
Answered by Caitlin A. • Biology tutor
8010 Views

What are public goods and how do they lead to the 'free-rider' problem?

A pure public good is a good that is consumed collectively; it is both non-excludable and non-rivalrous. These two main characteristics mean that people can't be stopped from consuming the good, and that one...
MC
Answered by Mathew C. • Economics tutor
3849 Views

Discuss the reactivity benzene, chlorobenzene, toluene and phenol in electrophillic aromatic substitution

Phenol > Toluene > Benzene > Chlorobenzene. The reactivity of the ring is dependant on how electron rich it is, as this determines the extent to which the (positively charged) electrophile can attac...
JM
31940 Views

Prove that 1+4+9+...+n^2 = n(n+1)(2n+1)/6.

Consider the case n=1. Then 1(1+1)(2*1+1)/6 = 1 = 1^2 and so the claim is true for n=1. Suppose the claim is true for some positive integer n, so that 1+4+9+...+n^2 = n(n+1)(2n+1)/6. Then by the inductive hy...
JR
21677 Views