INTRO DATA SCIENCE Using a bag with 20 blue marble and 30 white marble, set up the probability of drawing a blue marble and then a white marble. (DO IT USING REPLACEMENT)

the one on the bottom left

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all of the other ones have a specific pattern

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one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

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