A researcher suspects that the color blindness is inherited by a sex-linked gene. This possibility is examined by looking for a relationship between gender and color vision. A sample of 1000 people is tested for color blindness, and then they are classified according to their sex and color vision status (normal, red-green blind, other color blindness). Is color blindness related to gender? The data are as follows:
A battery with f.e.m. of 5.4 V and with internal resistance of 0.6 ohm it powers a device using a resistance of 3 ohm; How long has it taken for the appliance to consume 1 kWh?