As the atoms of the group 17 elements in the ground state are considered from top to bottom, each successive element has.

Arecent survey shows that the probability of a college student drinking alcohol is 0.6. further, given that the student is over 21 years old, the probability of drinking alcohol is 0.8. it is also known that 30% of the college students are over 21 years old. the probability of drinking or being over 21 years old is

Decide if the events a or b are mutually exclusive or not mutually exclusive. a date in philadelphia is selected. a: it rains that day b: it snows that day

Need to be done asap (picked sat because could not find sience)