a person enters a building on the first floor and runs up to the third floor in 30 seconds at this rate, how many seconds will it take the person to run from the first floor up to the 6th floor in the building?

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

Asap 25 pts + brainlest to right/best answer

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.