emmaogle2003
29.06.2019 •
Mathematics
You plant 30 african violet seeds and 9 of them sprout. use experimented probability to predict how many will sprout if you plant 20 seeds?
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Ответ:
Given that out of 30 planted seeds only 9 of the m sprouted, then:
Experimental probability =(number of occurrence of event)/(total number of trials made)
=9/30
=3/10
thus the number of seeds that will sprout given that 20 seeds we planted will be:
3/10×20
=6 seeds
Ответ:
84:28, do it again by 2
42:14, and again
21:7, now each can be divided by 7
7:1 is your final ratio