Please answer questions 1-3 and provide clear working/calculation, not just stating formula and final answer. Thanks so much!

._ .__, ____ Workers at a factory produce a toy with a defect about once every 4 hours on average. Each toy costs the factory approximately $7 in labor and supplies. 1.Given that there are at least 2 defects in the next 8 hours, what is the probability that there are 4 defects in the next 8 hours. 2. What is the probability that there will be exact 5 defects in six of the next seven 24-hour periods? (4 decimal places) 3. What is the probability that there will be a total of 5 x 6 = 30 defects in the next week (168 hours)? (4 decimal places)