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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: Who came up with the idea of probability and why
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Q: Re-arrange the letters REHET to make a number
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Q: The probability that a radish seed will germinate is 0.7. A gardener plants seeds in batches of 13. What is the standard deviation for the number of seeds germinating in each batch
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Q: When is the average median and mode the same
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Q: Is Median an outlier
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Q: If you roll a die once what is the probabililty of rolling a 3
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Q: It is also called the positional average
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Q: In a bag there are 8 red marbles 4 blue marbles and 6 green marbles write the ratio of red marbles to green marbles
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Q: What is the standard deviation of the scores 100 92 94 95 81 82 87 89 71 71 73 61 62 68 51 55
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Q: If you flip 5 coins how many possible outcomes are there
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Q: If a fair coin is tossed eight times what is the probability of getting exactly 6 heads
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Q: Rolling a single die 34 times keeping track of the numbers rolled is this a bionomial distribution
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Q: In the xy-plane the y-axis contains all ordered pairs such that
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Q: What is the probability of two consecutive different coin flips
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Q: If a coin was tossed 1000 times what would be the probability that coin will land on heads
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Q: Which type of graph is best suited for displaying the average number of pets for families in different income ranges
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Q: What show an element of the sample space for first rolling a die and then tossing a coin
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Q: What is an ordered list of numbers or objects called
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Q: How many faces does a parallelogram have
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Q: In a sample of 500 students 50 percent attend college within 50km of their homes The probability that the population proportion will be between 0.45 and 0.55 is
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Q: Probability of drawing a red jack
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Q: Is weight a descrete variable
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Q: Area to the left of the mean in a normal distribution is equal to
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Q: How do you convert ordered data to nominal data
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Q: A bar chart is good for showing what type of data
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Q: Advantages of statistical quality control
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Q: How do you interpret if this is the data SD of 15.79 and mean of 126.9 or SD of 8.29 and mean of 124.7 also How do you know if the standard deviation is high and is there a highest possible SD
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Q: The standard deviation of a sample of 10000 observations equals 121 The variance of the sample equals
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Q: Is standard normal distribution a probability distribution function
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Q: A coin is biased so that the probability a head comes up when it is flipped is 0.6 What is the expected number of heads that comes up when its flipped 10 times
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Q: Data in a box-and whisker plot
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Q: What is the probability of rolling a 5 and a 2
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Q: If you toss a fair coin 90 times how many times would you expect a heads to be face up on the toss
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Q: How many 4 diget numbers can you make using 1 2 3 4 with out repeating any of the digits in the same number
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Q: What is the event in which the outcome of one event does not influence the outcome of the other event
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Q: Data at the ordinal level are quantitative only
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Q: How many times must you throw two dice to be sure that you get the same sum at least twice
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Q: What is the mean median mode and range of 10 12 15 16 5
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Q: If you have 3 fair dice each numbered 1 to 6 what is the chance all three dice show even numbers
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Q: What is volunteer sampling
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Q: If A bag contains 3 orange 5 black and 2 white marbles Two marbles are drawn but the first marble is not replaced Find P white then black
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Q: Roles of Probability in different fields of life
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Q: What is the measure of centeral tendency in math
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Q: What does a negative net radiation value mean
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Q: If a multiple-choice question has five answer choices and you submit one wrong answer before getting the question correct how much credit will you lose for that part of the question
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Q: If a family has three children find the probability that two of the children are girls
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Q: Types of non-sampling errors
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Q: Spread between the smallest and largest numbers in a range of numbers
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Q: Is being an actuary boring
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Q: What is the standard deviation when mean is 64 and variance is 36
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