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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: In a confidence interval what information does the margin of error provide
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Q: What is the mean number of leaking tanks in such samples of 15
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Q: If data are organized with several values together the result is
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Q: What is an example of a descriptive variable
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Q: What is the probability that a randomly selected case from a normally distributed distribution will have a score between -1.00 and the mean
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Q: Can paired means be statistically significant
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Q: How do you find p value with test statistic and critical value
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Q: What is the p value of a test statistic of 1.369
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Q: How many ways can 12 books be arranged on the shelf
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Q: The probability that an adversary will exploit a weakness in your operation tempered by the impact to your mission is defined as
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Q: Data collected in a survey
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Q: What is the probability of one head and two tails
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Q: What is the probability of getting a least one tail when tossing eight fair coins
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Q: Which of the following is the best definition of the sample space Space of a probability event
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Q: What is the probability that the person selected drives a truck or exercises four or more times per week
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Q: Which of the following is incorrect Select one a. Probability distribution is used to compute continuous random variables b. Probability distribution equals to one. c. Probability distribution is used
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Q: Critical observationthinking is best demonstrated by which of the following actions
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Q: Sensitive data is always classified
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Q: For a given event what is the result of dividing the number of successful outcomes by the number of possible outcomes
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Q: A fish tank contains 16 goldfish and 24 guppies. If you randomly select 2 fish what is the probability that they are both goldfish
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Q: A band leader randomly selects 2 students out of 80 band members. If you and your brother are both band members what is the probability that you are both selected
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Q: A bag contains 26 letters and 10 numerals. Amy draws two cards from the bag. What is the probability that she draws 2 letters
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Q: A fish tank contains 18 goldfish and 22 guppies. If you randomly select 2 fish what is the probability that they are both goldfish
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Q: There are 10 students in a classroom including the triplets Hugh Stu and Lou. If 3 of the 10 are randomly selected to give speeches what is the probability that Hugh will be first Stu will be second a
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Q: A small business employs 6 women and 4 men. The manager randomly selects 3 of them to be on a team. What is the probability that all 3 are men
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Q: A school debate team has 4 girls and 6 boys. A total of 4 of the team members will be chosen to participate in the district debate. What is the probability that 2 girls and 2 boys will be selected
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Q: Don randomly draws two cards from a standard deck of 52 cards. He does not replace the first card. What is the probability that both cards are aces
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Q: A bag contains 26 letters and 9 numerals. Aubrey draws two cards from the bag. What is the probability that she draws 2 numerals
1 answer
Q: A family has 8 girls and 4 boys. A total of 2 children must be chosen to speak on the behalf of the family at a local benefit. What is the probability that 1 girl and 1 boy will be chosen
1 answer
Q: You roll a 6-sided die with faces numbered 1 through 6 and toss a coin. What is the probability of rolling a 3 or getting heads
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Q: Glenn rolls a 6-sided die. What is the probability that he gets a number greater than 2 or an odd number
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Q: You roll a 6-sided die with faces numbered 1 through 6 and toss a coin. What is the probability of rolling a 5 or getting tails
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Q: What is the chief aim of probability sampling is to be able to select
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Q: A school debate team has 4 girls and 6 boys. A total of 3 of the team members will be chosen to participate in the district debate. What is the probability that 3 girls and no boys will be selected
1 answer
Q: How may 4 digit number parlay combinations are possible by using 6 numbers And what are the combinations
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Q: What is the probability of getting a factor of 6
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Q: When tossing 2 coins the probability of getting exactly 1 tail is one fourth
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Q: Which of the following is an important advantage of experiments over observational studies
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Q: What is the probability of you getting three heads straight for tossing a fair coin three times
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Q: A chi square probability of 0.05 means what
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Q: What are two possible outcomes to prove an experiments hypothesis
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Q: Is it true if two events are indenpent then the probability of both events is less than 1
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Q: What is the probability that the sum of the dice is odd and both dice show the number 3
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Q: If the probability that an event will happen is .25 or 25 percent what is the probability that it will not happen
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Q: When do you use n-2 degrees of freedom
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Q: What is the probability of choosing a prime number
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Q: What is the probability that both cards are spades
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Q: What is the probability of getting heads when flipping a coin and getting a number greater than or equal to 4 when rolling a die
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Q: What is a good measure of central tendency if a data set contains extreme values that may be the result of incorrect measurement
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Q: How many ways can 9 books be arranged on a shelf if there is only room for 5 of the books
1 answer
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