Mathematics, 08.02.2021 18:40 johndoesnutz4690
An article in Fire Technology, 2014 (50.3) studied the effectiveness of sprinklers in firecontrol by the number of sprinklers that activate correctly. The researchers estimate the probability of a sprinkler to activate correctly to be 0.7. Suppose that you are an inspector hired to write a safety report for a large ballroom with 10 sprinklers. Assume the sprinklers activate correctly or not independently.
Required:
a. What is the probability that all of the sprinklers will operate correctly in a fire?
b. What is the probability that at least 7 of the sprinklers will operate correctly in a fire?
c. What is the minimum number of sprinklers needed so that the probability that at least one operates correctly is at least 0.98?
Answers: 1
Mathematics, 21.06.2019 15:00
Which statements regarding the diagram are true? check all that apply.
Answers: 1
Mathematics, 21.06.2019 16:50
Which of the following points is collinear with (-2,1) and (0,3)
Answers: 3
Mathematics, 21.06.2019 22:00
Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?
Answers: 2
Mathematics, 21.06.2019 23:00
Acaterpillar eats 1400\%1400% of its birth mass in one day. the caterpillar's birth mass is mm grams. which of the following expressions could represent the amount, in grams, the caterpillar eats in one day? \
Answers: 1
An article in Fire Technology, 2014 (50.3) studied the effectiveness of sprinklers in firecontrol by...
Social Studies, 28.06.2019 06:30
Social Studies, 28.06.2019 06:30
Chemistry, 28.06.2019 06:30
History, 28.06.2019 06:30
Chemistry, 28.06.2019 06:30
Spanish, 28.06.2019 06:30
English, 28.06.2019 06:30
Spanish, 28.06.2019 06:30
Spanish, 28.06.2019 06:30