Given the sample variance and sample size of each set of data, find the pooled estimate of variance a S 2 x 13 2 n x 15, S 2 y 119 n y 13 b S 2 x 161 2 n x 21, S 2 y 158 7 n y 25 c S 2 x 32 1 n x 60, S 2 y 48 6 n y 40 ...

Result a S2x 132 nx 15 S2y 119 ny 13 Pooled Variance S2x S2y ...

Given the sample variance and sample size of each set of data, find the pooled estimate of

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Given the sample variance and sample size of each set of data, find the pooled estimate of variance.

a. S²_x = 13.2 n_x = 15, S²_y = 119 n_y = 13

b. S²_x = 161.2 n_x = 21, S²_y = 158.7 n_y = 25

c. S²_x = 32.1 n_x = 60, S²_y = 48.6 n_y = 40

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Cambridge International AS & A Level Further Mathematics Coursebook

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Authors: Lee Mckelvey, Martin Crozier

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Cambridge International AS & A Level Further Mathematics Coursebook

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