Mathematics, 17.10.2020 07:01, matiasjjj14
The times to complete the NYC marathon are normally distributed with a mean of 278 minutes and a standard deviation of 62 minutes. If 125 runners are randomly selected then how many do we expect will take less than 3 hours to complete the race. Give your answer to two decimal places and do not give units.
Answers: 2
Mathematics, 21.06.2019 14:00, anggar20
Ms. sutton recorded the word counts and scores of the top ten essays in a timed writing contest. the table shows her data. how does the word count of an essay relate to its score in the contest? word count tends to decrease as the score decreases. word count tends to increase as the score decreases. word count tends to remain constant as the score decreases. word count has no apparent relationship to the score of the essay.
Answers: 1
Mathematics, 21.06.2019 17:40, skylerdemi1
A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2
Answers: 2
Mathematics, 21.06.2019 23:00, Baby010391
Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122
Answers: 1
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