- Question 3 Only Please Hurry Up 1 (77.9 KiB) Viewed 100 times
question 3 only please hurry up
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question 3 only please hurry up
question 3 only please hurry up
Question 1. (40 pts: 13-13-14) The average number of persons who become seriously ill per six months from eating a certain poisonous plant is 5. Find the probability that between 3 (inclusive) and 8 illnesses (inclusive) occur: a) In a given 3-month period b) In a given year c) In more than 2 years of the next 10 years Question 2. (20 points) It is estimated that 99% of the residents of a town are in favor of banning smoking in the train station. If 300 people of this town are asked their opinion, what is the probability that at most 5 are against this ban? Question 3. (40 pts: 10 each) The probability that a student eats at the university restaurant on a given day is 0.7. If 10 students are selected at random, find the probability that: a) More than 8 eat at the university restaurant on a given day. b) Between 2 (inclusive) and 7 (inclusive) eat at the university restaurant on a given day. c) The 3rd time in April that a student ate at the restaurant was on the 7th of April . d) More than 8 eat at the university restaurant the first time in April on the 5th of April.
Question 1. (40 pts: 13-13-14) The average number of persons who become seriously ill per six months from eating a certain poisonous plant is 5. Find the probability that between 3 (inclusive) and 8 illnesses (inclusive) occur: a) In a given 3-month period b) In a given year c) In more than 2 years of the next 10 years Question 2. (20 points) It is estimated that 99% of the residents of a town are in favor of banning smoking in the train station. If 300 people of this town are asked their opinion, what is the probability that at most 5 are against this ban? Question 3. (40 pts: 10 each) The probability that a student eats at the university restaurant on a given day is 0.7. If 10 students are selected at random, find the probability that: a) More than 8 eat at the university restaurant on a given day. b) Between 2 (inclusive) and 7 (inclusive) eat at the university restaurant on a given day. c) The 3rd time in April that a student ate at the restaurant was on the 7th of April . d) More than 8 eat at the university restaurant the first time in April on the 5th of April.