Question

a)

The hatching success for a particular game bird was recorded by an ornithologist. The percentage of successful nests for five

b)

of squares sum п-1 (TENTHS)

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Answer #1

Solution :

n = 5

n - 1 = 5 - 1 = 4

\bar x = \sum x / n = 232 / 5 = 46.4

(a)

s 2 =  \sum(x - \bar x)2 / n - 1

= (33 - 46.4)2 + (34 - 46.4)2 + (40 - 46.4)2​​​​​​​ + (52 - 46.4)2​​​​​​​ + (73 - 46.4)2​​​​​​​ / 4

= 1113.2 / 4

s 2 = 278.3

(b)

s = \sqrt278.3 = 16.7

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