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Keep in mind that certain distributions, such as exam scores or some physical characteristics for specific age and gender groups, naturally follow a normal shape. Other distributions are naturally skewed left or have low outliers if there tend to be relatively few values that are unusually low compared to the rest. Yet other distributions are naturally skewed right or have high outliers if there tend to be relatively few values that are unusually high compared to the rest. Decide if each of the following variables is most likely to have a shape that is approximately normal, or skewed left/low outliers, or skewed right/high outliers:
a. Math SAT scores
b. Number of credits taken by a large group of students, including part-time and full-time
c. Number of minutes that students spend exercising on a given day
d. Number of minutes that students spend watching TV on a given day
e. Ages of students' fathers
f. Heights of students' mothers
g. Number of siblings that students have
h. How much money students earned the previous year
Create a random walk where the initial state is equally likely to be any one of the five pages.- Draw a transition diagram and find the probability transition matrix for this Markov chain.
Working with a small group of colleagues, develop a consensus view of private car sales in Western Europe in five years time. In order to do this you will need.
In 2010, 65% of adult Americans thought that the death penalty was morally acceptable. In a poll conducted by the Gallup Organization, a simple random sample of 1005 adult Americans
The article "Can We Really Walk Straight?" (American Journal of Physical Anthropology [1992]: 19-27) reported on an experiment in which each of 20 healthy men was asked to walk as straight as possible to a target 60 m away at normal speed. Constru..
A hospital human resources manager finds that the local average starting salary for nurses is $24,000. She randomly samples 10 nurse's salaries at the hospital and calculates a mean of $23,450 and a standard deviation of $400.
If the sides of a square are lengthened bt 5cm, the area becomes 169cm2. Find the length of a side of the original square.
Customers arrive to the company at a rate, on average, of one per hour with a Poisson distribution. The company is staffed by a single individual(the owner) who takes on average 30 minutes with each customer with a standard deviation of 15 minute..
the grade appeal process at a university requires that a jury be structured by selecting six individuals randomly from
What is the probability that the amount of protein is less than 7.75 grams? b. What is the probability that the amount of protein is between 7.8 and 8.2 grams
Tybalt receives in the mail an offer to enter a national sweepstakes. The prizes and chances of winning are listed in the offer as: $5 million.
a fair six sided die is rolled 10 times. calculate the expected value of the sum of the numbers observed. then compute
collect cumulative data for all u.s. major carriers for the time period of january 2006 through december 2012. the data
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