Mrs. daly's reading classes were surveyed about their reading preferences. the data is summarized in the table below. 9th graders who prefer fiction- 35 9th graders who prefer nonfiction- 8 total of 9th graders- 43 10th graders who prefer fiction- 52 10th grader who prefer nonfiction- 12 total of 10th graders-64 total of students who prefer fiction-87 total of student who prefer nonfiction-20 total of students- 107 given that a student prefers fiction novels, what is the probability that they are also in 10th grade based on this data? write your answer as a decimal rounded to the nearest hundredth.

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence: