Probability Examples and Explanations
Anonym 2021-08-13Intrusion detection systems.
A computer intrusion detection system (IDS) is designed to provide an alarm whenever an intrusion (e.g., unauthorized access) is being attempted into a computer system.
A probabilistic evaluation of a system with two independently operating intrusion detection systems (a double IDS) was published in the Journal of
Research of the National Institute of Standards and Technology (Nov.–Dec. 2003).
Consider a double IDS with system A and system B. If there is an intruder, system A sounds
an alarm with probability .9 and system B sounds an alarm
with probability .95.
If there is no intruder, the probability that system A sounds an alarm (i.e., a false alarm) is .2 and the probability that system B sounds an alarm is .1.
If there is an intruder, what is the probability that both
systems sound an alarm?
A computer intrusion detection system (IDS) is designed to provide an alarm whenever an intrusion (e.g., unauthorized access) is being attempted into a computer system.
A probabilistic evaluation of a system with two independently operating intrusion detection systems (a double IDS) was published in the Journal of Research of the National Institute of Standards and Technology (Nov.–Dec. 2003).
Consider a double IDS with system A and system B. If there is an intruder, system A sounds an alarm with probability .9 and system B sounds an alarm with probability .95.
If there is no intruder, the probability that system A sounds an alarm (i.e., a false alarm) is .2 and the probability that system B sounds an alarm is .1.
If there is an intruder, what is the probability that both systems sound an alarm?
Kaycee Roche 2021-08-12Intrusion detection systems.
A computer intrusion detection system (IDS) is designed to provide an alarm whenever an intrusion (e.g., unauthorized access) is being attempted into a computer system.
A probabilistic evaluation of a system with two independently operating intrusion detection systems (a double IDS) was published in the Journal of
Research of the National Institute of Standards and Technology (Nov.–Dec. 2003).
Consider a double IDS with system A and system B. If there is an intruder, system A sounds
an alarm with probability .9 and system B sounds an alarm
with probability .95.
If there is no intruder, the probability that system A sounds an alarm (i.e., a false alarm) is .2 and the probability that system B sounds an alarm is .1.
If there is no intruder, what is the probability that both
systems sound an alarm?
A computer intrusion detection system (IDS) is designed to provide an alarm whenever an intrusion (e.g., unauthorized access) is being attempted into a computer system.
A probabilistic evaluation of a system with two independently operating intrusion detection systems (a double IDS) was published in the Journal of Research of the National Institute of Standards and Technology (Nov.–Dec. 2003).
Consider a double IDS with system A and system B. If there is an intruder, system A sounds an alarm with probability .9 and system B sounds an alarm with probability .95.
If there is no intruder, the probability that system A sounds an alarm (i.e., a false alarm) is .2 and the probability that system B sounds an alarm is .1.
If there is no intruder, what is the probability that both systems sound an alarm?
emancipezN 2021-06-28If there is a 25% chance that it will rain on any given day in Seattle, find the probability that it will rain for three consecutive days.
Tyra 2021-06-06A ___ random variable has either a finite or a countable number of values.
a) probability
b) continuous
c)discrete
d)required
A ___ random variable has either a finite or a countable number of values.
a) probability
b) continuous
c)discrete
d)required
Tobias Ali 2021-06-05Write each of the 'following statements as if-then statements: Advanced math students are intelligent.
emancipezN 2021-05-30Justine works for an organization committed to raising money for Alzheimer’s research. From past experience, the organization knows that about 20% of all potential donors will agree to give something if contacted by phone. They also know that of all people donating, about 5% will give $100 or more. On average, how many potential donors will she have to contact until she gets her first $100 donor?
Bevan Mcdonald 2021-05-263,645 rolls of landscape fabric are manufactured during one day. After being inspected, 121 of these rolls are rejected as imperfect. What percent of the rolls is rejected? (Round to the nearest whole percent.)
Lennie Carroll 2021-05-17How many bit strings of length seven either begin with two 0s or end with three 1s?
How many bit strings of length seven either begin with two 0s or end with three 1s?
Braxton Pugh 2021-05-12Select an adult at random. Let A = person has earned an advanced degree (masters or PhD) and T = person's career is teaching. Rank the following probabilities from smallest to largest. Justify your answer. P(A)P(T)P(A∣T)P(T∣A)
Brittney Lord 2021-05-05If there are 7 bands and 3 floats, in how many different ways can they be arranged?
Chardonnay Felix 2021-05-05Rolling four fair dice and getting four 6s
opatovaL 2021-05-03When a fair die is rolled 10 times, what is the variation in the number of times a 6 appears?
When a fair die is rolled 10 times, what is the variation in the number of times a 6 appears?
bobbie71G 2021-03-12A statistical investigation showed that adults in a particular country have an 80% chance of living to be at least 70 years old and a 50% chance of living to be at least 80 years old. What is the probability that an adult who just turned 70 will live to be 80?
Line 2021-03-11Three students are arguing, Chad says, "I think the probability is 1 out of 2." Tien says, "No, it is 40 over 80." Falicia says, "It is 50%." What do you say to the students?
Tyra 2021-03-07A hip joint replacement part is being stress-tested in a laboratory. The probability of successfully completing the test is 0.883. 11 randomly and independently chosen parts are tested. What is the probability that exactly two of the 11 parts successfully complete the test?
necessaryh 2021-03-05While you are away on vacation, you ask a neighbor to water your ailing plant. If the plant does not receive water, it will die with a probability of 0.85. With water it will die with probability 0.5. You are 90 % certain the neighbor will remember to water the plant. You come back from the vacation and the plant is dead. What is the probability that the plant died because neighbor forgot to water it?
While you are away on vacation, you ask a neighbor to water your ailing plant. If the plant does not receive water, it will die with a probability of 0.85. With water it will die with probability 0.5. You are 90 % certain the neighbor will remember to water the plant. You come back from the vacation and the plant is dead. What is the probability that the plant died because neighbor forgot to water it?
e1s2kat26 2021-03-02Fruit Flles An experiment with fruit flies involves one parent with notmal wings and ooe parent with vestigial wings. When these parents have an of
Dillard 2021-03-02What is the probability of drawing 2 cards in succession (without replacement) from a standard deck of playing cards and having them both be hearts?
Ava-May Nelson 2021-02-26Census reports for a city indicate that of residents classify themselves as Christian, as Jewish, and as members of other religions (Muslims, Buddhists, etc.).
The remaining residents classify themselves as nonreligious.
A polling organization seeking information about public opinions wants to be sure to talk with people holding a variety of religious views, and makes random phone calls. Among the first four people they call, what is the probability they reach
a) all Christians?
b) no Jews?
c) at least one person who is nonreligious?
Census reports for a city indicate that of residents classify themselves as Christian, as Jewish, and as members of other religions (Muslims, Buddhists, etc.).
The remaining residents classify themselves as nonreligious.
A polling organization seeking information about public opinions wants to be sure to talk with people holding a variety of religious views, and makes random phone calls. Among the first four people they call, what is the probability they reach
a) all Christians?
b) no Jews?
c) at least one person who is nonreligious?
If you are looking for high school probability equations, you are in the right place because we can provide you with the list of answers and questions that will help you as you deal with your equations or just need practical examples. If you need to deal with something specific, browse through the list of examples and see how each answer has been handled.
The high school probability differs from those engineering tasks, yet it is not always much simpler if you do not know the basics. Therefore, take your time to see our examples and learn.
