What do you see? The true reason that Venus is part of this plant's name due to the dirty minds of the kooky naturalists and nuserymen (such as John & William Bartram, Peter Collinson, William Darlington, Arthur Dobbs, John Ellis, and Daniel Solander).he true reason that Venus is part of this plant's name due to the dirty minds of the kooky naturalists and nuserymen (such as John & William Bartram, Peter Collinson, William Darlington, Arthur Dobbs, John Ellis, and Daniel Solander).
Find the... show more The average time it takes a person to fall asleep 20.9 minutes. The standard deviation is 2.4 minutes. Assume the time is normally distributed.
It means that since most adults need 8-9 hours of sleep, they will need about 1.6-1.8 hours of deep sleep to feel fully functional next day. However, the time of deep sleep is changed and that's mainly due to the change in the sleep need of different group of people. For instance: Age Group.