The following dataset represents the number of minutes a student listens to music in a week for 50 students, sorted and arranged in rows of 5. What is the 80th percentile of the data?

Can someone answer these problems for me

1. if we have 3 babies what is the probability they’re going to be all boys? 2. if we roll 2 die at the same time what is the probability of getting less than 10 on the first roll and a 5 on the second roll 3. if we have 3 babies what is the probability their is going to be 2 girls? 4. if we have 3 babies what is the probability of having no more than 1 girl? 5. it we have 3 babies and then have another 3 babies what is the probability of us having at least 1 boy and then having all girls?

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then