Mathematics, 20.09.2020 07:01 maehardy4134
For runners competing in a marathon, the mean time to run a mile is 4.2 minutes with a population standard deviation of 0.6 minutes. A news reporter is looking to include statistics for his article about fast runners. At a marathon, a random sample of 36 runners was taken and the probability that the mean time to run a mile for the sample will be less than 3.9 minutes was found. Was the probability a Left-tail, Right -tail or Interval Probability? What is the probability that the mean time to run a mile for the sample will be less than 3.9 minutes? Select the two correct answers that apply below. Use a calculator to find the probability.
Answers: 3
Mathematics, 21.06.2019 18:00, cici170
Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).
Answers: 2
Mathematics, 22.06.2019 05:00, rbriezz
Perry angelo is planning to open a restaurant. he has the resources to produce and sell either hamburgers or pizzas. so he does some research and finds that the new location has a good demand for pizza. he hires cooks, wait staff, and an accounts person for his new pizzeria. he also arranges for materials such as pizza ingredients and pizza boxes. determine three factors affecting perry's cost of making pizza. write down the name of the factors and their instances in this scenario.
Answers: 3
For runners competing in a marathon, the mean time to run a mile is 4.2 minutes with a population st...
Mathematics, 17.06.2021 20:40
English, 17.06.2021 20:40
Mathematics, 17.06.2021 20:40