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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: If John tosses four fair coins what is the probability that all four coins will land tails up
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Q: What are the three ways to describe data in a scatter plot
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Q: What is the probability of a coin landing on its side
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Q: Only 7.2 percent of the population has O-negative blood A mobile blood center is visited by 20 donors in afternoon Let X denote number of universal donors among them probability that X is at least 2
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Q: What is underlying distribution
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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
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Q: What is the difference between a graph and a diagram
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Q: What is the probability of drawing a queen or a club from a deck of cards
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Q: Given a standard normal distriution find the area under the curve which lies to the left of z equals 1.43
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Q: What are the last two digits of 5 to power of 347
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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
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Q: What is The probability of being born on 1st of January
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Q: Jamie has a bucket with a total of 25 blocks in it 5 of the blocks are red and 7 are green and 8 are blue and 5 are yellow If he randomly draws one block out what are the odds that it is blue
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Q: Why there are an infinite number of normal distributions
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Q: What is the definition of a systematic type of sampling
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Q: What is the probability that the birthdays of five persons chosen at random will fall in twelve different calendar months
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Q: How is the sales-volume variance calculated
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Q: How many 4 digit EVEN numbers have all 4 digits distinct
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Q: Advantages and disadvantages of Thurstone scale
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Q: What is the probability the human offspring will be female
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Q: True or false a distribution of sample means is normally distributed with a mean equal to the population mean and standard deviation equal to the standard error of the mean
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Q: How you would know what variables are positively linearly correlated
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Q: Can random error be minimized
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Q: What does a t-test tell you
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Q: What is the difference between frequency distribution and relative frequency distribution
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Q: The probability that a patient recovers from a delicate heart operation is 0.9 what is the probability that exactly 5 of the next 7 patients having the operation survive
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Q: What is it called when a sample doesn't represent the population being polled
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Q: Difference between classical approach and relative approach of probability with example
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Q: What variance is best for measuring operating performance
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Q: What is the first step in calculating the standard deviation
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Q: How does the mean compare to the median
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Q: What is probability sampling and non probability sampling
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Q: When all the items in a population have an equal chance of being selected for a sample the process is called
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Q: When is mode the best of measure of central tendency
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Q: How many 5-digit numbers can be formed using the digits 0 1 2 3 4 5 if repetitions are allowed exactly divided by 4
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Q: Is sampling with replacement a finite population
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Q: Which ordered pair describes the location of the point shown on the coordinate system below
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Q: What is the dependent variable in a project
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Q: What is capit and tion
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Q: What is the next step in the scientist method following data collection
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Q: Which is the best measure of central tendency and why
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Q: When a function is graphed is the dependent variable usually measured along the x-axis
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Q: What would be the experimental probability of rolling a die 50 times and getting 4
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Q: What are the components of time series
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Q: A single die is rolled twice Find the possibility of getting two numbers whose sum is greater than 9
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Q: If the mean is 15.2 and the standard deviation is 0.9 What is the probability that x is greater than 16.1
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Q: What is the area under the standard normal curve
2 answers
Q: Do you count duplicate numbers in stem and leaf plot
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Q: How would a data set containing the values of a variable with a mean of 50 and standard deviation of 2 compare with a mean of 50 and standard deviation of 20
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Q: What is the function of pension fund actuaries
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