Mathematics, 20.10.2020 04:01 Franciscoramosxt
In Hawaii shark attacks are very rare. Furthermore, about 55% of all shark attacks are serious, but not fatal.† You are scheduled to give a talk at a local scuba club in Honolulu and want to include a brief statistical profile regarding the most recent nine shark attacks, all of which were nonfatal. Let r be the number of nonfatal attacks out of a random sample of nine shark attacks.
(b) What is the probability all nine shark attacks are nonfatal? (Round your answer to three decimal places.)
(c) What is the probability that seven or more of the nine shark attacks are nonfatal? (Round your answer to three decimal places.)
(d) What is the expected number of nonfatal shark attacks out of the nine?
What is the standard deviation of the r-probability distribution? (Round your answer to three decimal places.)
Answers: 3
Mathematics, 21.06.2019 14:10
You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.
Answers: 3
Mathematics, 21.06.2019 19:30
Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.
Answers: 1
Mathematics, 21.06.2019 19:30
Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?
Answers: 1
In Hawaii shark attacks are very rare. Furthermore, about 55% of all shark attacks are serious, but...
Mathematics, 30.10.2020 17:30
Advanced Placement (AP), 30.10.2020 17:30
Mathematics, 30.10.2020 17:30
Biology, 30.10.2020 17:30
Spanish, 30.10.2020 17:30
Biology, 30.10.2020 17:30
History, 30.10.2020 17:30
History, 30.10.2020 17:30
Physics, 30.10.2020 17:30