Mathematics, 16.10.2019 04:10 axelsanchez7710

Suppose that the handedness of the last fifteen u. s. presidents is as follows:

40% were left-handed (l)
47% were democrats (d)

if a president is left-handed, there is a 13% chance that the president is a democrat.

based on this information on the last fifteen u. s. presidents, is "being left-handed" independent of "being a democrat"?

(a) yes, since 0.40 * 0.47 is not equal to 0.13.
(b) no, since 0.40 is not equal to 0.13.
(c) no, since 0.47 is not equal to 0.13.
(d) yes, since 0.47 is not equal to 0.13.

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Suppose that the handedness of the last fifteen u. s. presidents is as follows:

40% wer...