59. Abandoning Landlines. The Centers for Disease Control reported in 2014 that 41% of U.S. households use only cell phones (no landline) (Source: http://www.pewresearch.org/fact-tank/2014/07/08/two-of-every-five-u-s-households-have-only-wireless-phones/). Suppose we take a random sample of 12 telephone users.
6.2.59
(a) 0.2054 (b) 0.4101 (c) 0.6189