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Statistics

Dive into the realm of statistical methods and analyses, covering everything from probability and data collection to descriptive and inferential statistics. This subject is crucial in making informed decisions based on data.

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Questions
Q: Is year is a ratio scale
1 answer
Q: What is the difference between a categorical variable and numerical variable
1 answer
Q: Could two samples have the same range but different means
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Q: How many 4 digit numbers can be formed by the digits 5 6 7 8
1 answer
Q: What is the likely hood that a paticular event will occur
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Q: What is the probability of rolling a six with a fair die five times in a row
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Q: A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find anoher positio the standard deviation of the sample was 6.2 weeks
1 answer
Q: How many 3-letter code words are possible using the first 7 letters of the alphabet if adjacent letters cannot be the same
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Q: How many 5 digit numbers can be formed out of 56789 if they can be repeated
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Q: If a set of events are collectively exhaustive and mutually exclusive what does the sum of the probabilities equal
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Q: What is the probability of drawing 3 cards that are all queens from a deck of cards
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Q: There are 40 yellow marbles and blue marbles in a bag there are four times as many blue marbles as yellow marbles how many yellow and blue marbles are there
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Q: Mrssung gave a test in her trigonometry class the scores were normally distributed with a mean of 85 and a standard deviation of 3 what percent would you expect to score between 82 and 88
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Q: A theoretical condition where no heat is present is
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Q: A community made up of interacting populations in a certain area at a certain time
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Q: Can the mode be used to describe both categorical and numerical data
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Q: What does one standard deviation mean
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Q: What are the disadvantage of box and whisker plots
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Q: Women's heights are normally distributed with mean 63.7inches and standard deviation of 2.5 inches A social organization for tall people has a requirement that women must be at least 70 inches tall W
1 answer
Q: What is the probability for 0.2
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Q: What does format error mean
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Q: The three characteristics that describe a set of numerical data are
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Q: What is the mode when you have three different numbers all repeated twice
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Q: You randomly select 500 students and observe that 85 of them smoke Estimate the probability that a randomly selected student smokes
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Q: What is your chance of getting a diamond out of 52 cards
3 answers
Q: A zero population correlation coefficient between a pair of random variables means that there is no linear relationship between the random variables True or false
1 answer
Q: If John tosses four fair coins what is the probability that all four coins will land tails up
1 answer
Q: What are the three ways to describe data in a scatter plot
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Q: A 12 sided dice numbered 1-12 is rolled find the probability that an odd number or a number less than four was obtained
1 answer
Q: Can you use spss to analyze Data collected on Likert scale
1 answer
Q: What is a research technique that uses the grouped data from several different studies.
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Q: What are the Advantage and disadvantage of purposive sampling
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Q: Is yearly income a continuous variable or a discrete variable
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Q: What is 2 thirds times 4
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Q: What does 5th percentile crash test dummy means
1 answer
Q: What is a difference between F statistics F distribution
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Q: What does excluded value mean
1 answer
Q: Seven tenths of a circle is what percent of a circle
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Q: Relation between quartile deviation and mean deviation
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Q: If class attendance explained 16 percent of the variation in grade index among students what is the numerical value of the correlation between percentage of classes attended and grade index
1 answer
Q: Five cards are drawn at random from an ordinary deck of 52 cards In how many ways is it possible to draw all red card
1 answer
Q: What is 90th percentile out of 40
1 answer
Q: If you toss 4 coins what is the chance of them all landing on tails
1 answer
Q: Every car in North Carolina must have a license plate with six characters if the department of motor vehicles only uses numerical digits how many different license plates can be issued
1 answer
Q: What does safe estimate and ordinary estimate mean
1 answer
Q: Is the ace of spades tattoo racisit
1 answer
Q: On a ten question true-false quiz what is the probability of getting 70 percent or more correct by just guessing each answer
1 answer
Q: What is meant by a 95 percent confidence interval
1 answer
Q: What does NaN mean on a calculator
2 answers
Q: What are the advantages and disadvantages of random sampling
1 answer
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