Mathematics, 02.08.2019 14:20 kelseybell2707
Ijust need someone to let me know if i am correct here. the length of an instant message conversation is normally distributed with a mean of 5 minutes and a standard deviation of .7 minutes. what is the probability that a conversation lasts longer than 6 minutes? 0.045 0.077 0.955 this is than answer i chose. 0.922 a study of one thousand teens found that the number of hours they spend on social networking sites each week is normally distributed with a mean of 30 hours. the population standard deviation is 2 hours. what is the 95% confidence interval for the mean? 29.76−30.24 hours 29.88−30 hours 30−30.12 hours 29.88−30.12 hours this is the answer that i chose.
Answers: 1
Mathematics, 21.06.2019 18:30
Ill mark the brainliest if you me with the these three questions 7,8,9
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Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !
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What is the absolute value of the complex number -4- 2 v14 3.15 14 18
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Ijust need someone to let me know if i am correct here. the length of an instant message conversatio...
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