Mathematics, 09.04.2020 20:04, nananna90
A Department of Transportation report about air travel found that, nationwide, 78% of all flights are on time. Suppose a random sample of 50 flights is selected from all nationwide flights that were completed in the past 30 days (over 1000 flights). Let the random variable X be defined as the number of sampled flights that arrived on time. a) How many flights would you expect to be late ? b) Calculate the standard deviation ? c) What is the probability you will have exactly 80 flights on time ? d) What is the probability you will have 20 or less flights that are late ? e) What is the probability you will have more than 100 on time ?
Answers: 3
Mathematics, 21.06.2019 13:00, QueenNerdy889
You download a video game to your computer. you have a 60-minute free trial of the game. it takes 5 1/6 minutes to set up the game 7 1/3 minutes to play each level. you want to find out how many levels you can play for free. which inequality describes the number of levels, l, you can play in 60 minutes? can you play 6 levels during your free trial? i need ,
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Mathematics, 21.06.2019 20:00, ismailear18
Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?
Answers: 1
Mathematics, 21.06.2019 20:20, kenken2583
Complete the input-output table for the linear function y = 3x. complete the input-output table for the linear function y = 3x. a = b = c =
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A Department of Transportation report about air travel found that, nationwide, 78% of all flights ar...
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