First box is 100 second is 4 third is 1500 4th box is 60 and last box is 1560
57% of students studied, which decomposes into 52% who both studied and saw an increase in their exam grade 5% who both studied and did Not see an increase in their exam grade The percentages above are relative to the whole population of 100 students, to get the requested probability, recall that: One way to find out the probability of an event is to Take the ratio of the number of times the event happened, over the total number of times the event could have happened. Total number of times the event happened: 52 = 52% of 100 students studied and saw an increase in their exam grade Total number of times the event could have happened: 57 = 57% of 100 students studied
Where is the picture? So I can help
15/60 reduces to 1/4 <====
Answer:
2. and 4.
Step-by-step explanation:
