During 1966, a total of 126 cases of St. Louis encephalitis (SLE) were reported from a community having a population of 20,000. Calculate the incidence rate of SLE in the community per 1,000 population during 1966? 3. Further investigation of the 126 cases (in question #2) revealed that 67 cases were males and the rest were females. The number of males in the community is 9,200. (a) Calculate the sex-specific incidence rates per 10,000 population; (b) Calculate the proposal distribution of the cases by sex; and (c) Determine the ratio of male rate to female rate (using the preferred methods, that is, the smallest number in the ratio is 1).

Step-by-step explanation:

(2)

Incidence Rate / 1000 =

Incidence Rate / 1000 =

Incidence Rate / 1000 = 6.3

(3)

As there are 9,200 males in the population of 20,000, the number of  females are (20,000-9,200) 10,800. Similarly, as there are 67 male cases from a total of 126, therefore, (126-67) 59 are female cases.

Male Incidence Rate / 10,000 =

Male Incidence Rate / 10,000 =

Female Incidence Rate / 10,000 =

Female Incidence Rate / 10,000 =

(b)

For proposal distribution we will simply use the incidence rates as the minimum threshold for each sexes as their acceptance rates to be regarded as affected (by the disease).

(c)

Male to Female Ratio =

Male to Female Ratio = 1.333

step-by-step explanation:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

step-by-step explanation:

given that megan owns a clothing boutique.

the profits of 2010, 11, are recorded and shown as follows:

years since     2010 0     1     2     3       4       5

profits made in 1000's   39       84     111     120   111     84

we find that profit gradually increases form 2010 to 2013 upto 120,   then starts decreasing.

the profits for 2012 and 2014 are the same while that of 2011 and 2015 are also the same.

this shows that there is symmetry about the line profit = 120000

hence answer is:

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is           symmetric about the line y = 120,000.

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898.1666667

step-by-step explanation:

5389/6 = 898.1666667