A psychology class consists of 32 freshmen and 48 sophomores. If the professor selects names from the class list using random sampling,
a. what is the probability that the first student selected will be a freshman?
b. and if a random sample of n 5 6 students is selected and the first five selected are sophomores, what is the probability that the sixth student selected will be a freshman?
c. Repeat question a (above) after 10 sophomore students join the class.
b. and if a random sample of n = 6 students is selected and the first five selected are sophomores, what is the probability that the sixth student selected will be a freshman?
Answer:
A) 0.4
B) 0.4267
C) 0.356
Explanation:
A) There are;
32 freshmen and 48 sophomores.
Thus, total number of students = 32 + 48 = 80 students.
Thus;
P(first student selected will be a freshman) = 32/80 = 0.4
B) Since there are 6 students randomly selected with the first 5 being sophomore, then;
After 5 sophomore students selected, we have;
(80 - 5) = 75 students left
Also, we have 32 freshmen.
Probability of the 6th being a fresh man which is the next selection is;
P(6th being a freshman) = 32/75 = 0.4267
C) if 10 sophomore students join, then total number of students is now;
80 + 10 = 90 students.
Thus;
P(first student selected will be a freshman after 10 sophomore students join) = 32/90 = 0.356
A man's reproductive age starts at puberty and ends when he dies. A woman's reproductive age is between Menarche (when she begins ovulating) and Menopause (when she stops ovulating). However, she has plenty eggs way before Menarche and way after Menopause. Why, do you think, Mother-Nature has put a limit on the reproductive age of women, but not men
Answer:
If women were capable of having children throughout their life, the population would be beyond the capacity at which our Earth could handle, causing a sure collapse of humanity as we overuse our resources. As well, our bodies weaken as we age, making pregnancies unsafe for both parent and child at older ages.
a traveller from London visits south Africa , explain why this segmentation is not applicable to the tourist
Answer:
because tourism market segmentation is the strategic tool for getting a clear picture of diversity among the tourists. The tourism researchers and the tourism industry use market segmentation information to study the opportunities for competitive advantage in the marketplace.
hope that helps bby<3
I will give you brainliest and thanks and 5 stars if its correct :)
Popular Sovereignty
The power of government comes from people
Common Good
People working together for the good of everyone
Patriotism
To show love for our country
Answer:
Popular Sovereignty = The power from the government comes from people
Common Good = People working together for the good of everyone
Patriotism = To show love of our country
what role do good roads play in developing the country
Answer:
it helps in transportation
Jim asks Bob how he is feeling. Instead of replying verbally to Jim, Bob gives Jim a "thumbs up" to let him know that he is doing well. Sociologists would describe Bob's response to Jim as which of the following:
a. Gesture
b. Language
c. Sign
d. Symbol
Answer:
c. Sign
Explanation:
Can some one pls help me on this
Answer:
Europe, Asia, the Pacific Ocean, North America, and the Atlantic Ocean.
Explanation:
Identify and explain the phenomenon represented by the arrows diagram .
Answer:
The phenomena represented here mark the direction of magnetic field that travels from North direction of the South.
Explanation:
Please find the attached file
Solution
The phenomena represented here mark the direction of magnetic field that travels from North direction of the South.
It also represents the alignment of magnetic dipoles with in a magnet in a direction in line with any external magnetic field in a way that it produces its own magnetic field that travels from North to the South direction.
According to the Rescorla-Wagner theory of conditioning, blocking occurs because... Group of answer choices the CS has already taken up most of the available associative strength. familiar stimuli are more difficult to condition. the CS gathers more associative strength than the US. the US has already taken up most of the available associative strength.
Answer:
Explanation:
How does the Rescorla Wagner model explain the blocking effect?
This effect was most famously explained by the Rescorla–Wagner model. The model says, essentially, that if one CS (here the light) already fully predicts that the US will come, nothing will be learned about a second CS (here the tone) that accompanies the first CS.Robert Rescorla and Allen Wagner were the first to realize what about classical conditioning? ... those in a vegetative state showed trace conditioning but those who were unconscious did not.According to stimulus substitution theory, after pairing the new stimulus with the existing conditioned stimulus it is possible to replace the first CS with the new stimulus. For instance, you have conditioned a rat to respond to a whistle as a signal that it is about to be fed.
According to the Rescorla-Wagner theory of conditioning, blocking occurs because CS has already taken up most of the available associative strength. The correct option is A. The Rescorla-Wagner model claims that blocking happens because the CS added in the second phase offers no fresh or prognostic information.
What did Rescorla and Wagner show about conditioning?The value of a paired trial as reinforcement decreases with increasing associative strength between the presented stimuli is a fundamental tenet of Rescorla and Wagner's model of associative learning.
Blocking and Unblocking predictions are one of the R-W model's most significant contributions. When a novel stimulus is presented alongside an established CS, blocking happens because the novel stimulus has no predictive value because it is novel.
Thus, the ideal selection is option A.
Learn more about the Rescorla-Wagner theory here:
https://brainly.com/question/14453430
#SPJ2
What is that thing which girls do once in lifetime and that same thing boys do every day?
Answer: Half of you is exactly as old as your mother. That is because the egg from your mother that was fertilized by your dad's sperm, was present in her ovaries the day she was born.
New sperm, on the other hand, is produced constantly in the male testicles. This process takes around 130 days for sperm to be fully formed, ready to die or create a new life.
So, men manufacture new reproductive chromosome-containing sperm every day, whereas women only manufacture their entire lifelong supply of chromosome-containing eggs once in their existence. This, in fact, already happens before they are born.
Quite enchanting if you think about it, actually.
Answer:
Maqabir (Graveyards).
Explanation:
The riddle shown above is the imprecise translation of an Arabic riddle. The riddle in its correct translation is "Men use it thrice a day, while women only use it once in a lifetime." The answer to this is Maqabir or Graveyards and it is related to a Muslim tradition where men enter the cemetery "three times a day" as they bury the dead three times between the forbidden temples, while women only enter the graveyard on the day of their burial.
3- Which of the following implications cannot be derived from Piaget's theory of
cognitive development?
Group of answer choices.
A. Discovery learning
B. Need of verbal teaching
C. Sensitivity to children's readiness to learn
D. Acceptance of individual differences
Answer:
B. Need of verbal teaching
Explanation:
Cognitive development can be defined as the development of thought processes, skills, knowledge and problem-solving abilities from infancy through adulthood.
Jean Piaget was a developmental biologist and psychologist who worked extensively on cognitive development in infants and teenagers; these are judgement, knowledge and thoughts.
Jean Piaget's stages of cognitive development in an ascending order are;
I. Sensorimotor: this is between 0 - 2 years (18 - 24 months) where the child exhibits object permanence.
II. Preoperational: this is age 2 - 7 years where the child acts in an egocentric manner.
III. Concrete operational: this is age 7 through age 11 and the child thinks logically at this stage.
IV. Formal operational: this is from adolescence (11 years) through adulthood and focuses on logically thinking about abstractions.
The following implications can be derived from Piaget's theory of cognitive development;
a. Discovery learning.
b. Being sensitive to a child's readiness and willingness to learn.
c. Acceptance of individual differences.
However, a need of verbal teaching such as the roles of language cannot be derived from Piaget's theory of cognitive development.
Why might a letter-writing campaign get a company to change its business practices? A. The government wants to keep both consumers and companies from burdening the postal system. B. The company could end up spending a lot of money answering all of the letters. O C. The company might fear that the letter-writing campaign will become a boycott if it doesn't respond. O D. Consumers use letter-writing campaigns to get the government to pass favorable legislation.
Answer: C. The company might fear that the letter-writing campaign will become a boycott if it doesn't respond.
Explanation:
A letter-writing campaign might be a precursor to larger things such as a boycott and this is alone to ensure that companies pay attention to the concerns of those writing the letters.
The logic is simple. If the organizers of the people writing the letters could organize so many people to write letters, they could just as well organize these people to boycott the company if they do not get their way and this would be harmful to the business.
Hãy nêu 19 ví dụ của 19 kiểu tam đoạn luận
Answer:
we dont speak like that sowyyy
Answer:
I don't know
Explanation:
cos i don't know what u ar talking about
Que ideas se presentan en cada caso
Mickey joins a guerilla band fighting the governemnt in some far away country. While in leading a squad of insurgents, he orders the death of every inhabitant of a small hamlet reportedly friendly to the government. Mickey is eventually captured and extradited to the Hague to face trial.
The purpose of Mickey's attack on the village was to create a state of extreme fear and dread amongst other villages who might support the government. Under this circumstance, Mickey would be charged with the:________.
Answer: crime of terrorizing
Explanation:
Terrorism is defined as the use of unlawful violence in order to inculcate fear which is done to intimidate the government or coerce them to agree to certain terms which are usually religious, or political.
Since the purpose of Mickey's attack on the village was to create a state of extreme fear and dread amongst other villages who might support the government, then he'll be charged with crime of terrorizing.
The struggle for equal rights is still ongoing. Minorities face many struggles in acquiring social, political, and economic equality. While de jure discrimination is easier to combat, de facto discrimination is very difficult to erase. The legacy of Jim Crow and other discriminatory practices can be seen today. The criminal justice system is heavily biased against minorities through both systemic and individual prejudices. For instance, Black defendants are more than 30% more likely to be sentenced to prison for the same crime committed by a similarly situated White defendant. This impacts opportunities not only for the individual, but also for their community and family. Minorities Make up approximately 30% of the population but make up around 60% of the prison population, even though minorities are no more likely to commit crimes than their white counterparts. Given these facts, what can be done
Answer:
Explanation:
While I feel I state the obvious; This stems from the institutionalized racism within our justice systems as well as our police and government officials. Educating ourselves is the biggest step, then educating others on this as well. From there, voting and calling our legislators is a good way to help. Advocating through social platforms if you have a large, or a small, is also a good way to help. We also need to demolish private prisons in America. That will do a lot for this particular cause.
I sadly believe that peaceful change is going to do much on this cause
Read through the five characteristics of qualitative research again. Based on these characteristics, describe the ways that a qualitative research report will differ from a more traditional experimental report prepared in accepted American Psychological Association (APA) format
Answer and Explanation:
Some of the characteristics of qualitative research include:
1. Natural setting
2. Researcher is key instrument
3. Multiple methods
4. Focus on participants
5. Emergent design
1. Natural setting: This means that qualitative researchers collect their data from the field ie where the participant is naturally dwelling(sometimes without the participant's knowledge of the researcher). This is different from an experimental research that involves bringing participants to a lab in order to manipulate dependent variables and observe them with independent variables and extraneous variables. An experimental research would therefore have to report the effect of the independent variable on the dependent variable while a qualitative research would report participants behavior given variables in his natural dwelling.
2. Researcher is key instrument: a qualitative researcher is the main instrument of research as he does not make use of third party source of data or data collected by someone else such as use of questionnaires, he observes the participants directly in the field. An experimental researcher on the other hand makes use of the results of his experiment, cause and effect relationship of variables, in getting his data for analysis. Therefore the qualitative researcher and experimental researcher will report different sources/methods of data collection in their research report.
Why is important that these Underground RR sites are protected?
Answer:
It is our heritage.
Explanation:
It is very important to protect these Underground Railroad sites because it is our heritage of our culture that we gained from our ancestors as well as we can used it for the purpose of transportation. These underground Railroads sites were produced for the purpose of transportation which is very costly to build so we also used these Underground Railroad sites for the purpose of transportation.
