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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 a distribution symmetrical if the tails on both ends of the density curve that represents it are not close to identical
1 answer
Q: Find the probability of getting a number greater than 5 when a die is rolled one time
1 answer
Q: Clayton has decided to use only qualitative data in his study. Which is an example of the type of information he may collect
2 answers
Q: Which of these pieces of data about a football team is considered numerical data
2 answers
Q: For a study Hosea is watching people in their normal surroundings. What type of data collection method is this
1 answer
Q: Are letters per word qualitative or quantitative
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Q: What is the probabiliyty of randomly picking a green card from a standard deck of playing cards
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Q: What can 3 numbers be if the lowest number was 11 the range was 13 and the median was 17
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Q: Direct control is when possible extraneous factors are standardized
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Q: In an experiment f is the control variable g is the response variable and h and k are extraneous factors. The specific units of are referred to as the treatments of the experiment.
1 answer
Q: Rose decided to use blocking to deal with extraneous factors in her experiment. If 3 treatments are applied to one of her groups how many treatments should be applied to each of her other groups
1 answer
Q: In an experiment the control variable is a and the response variable is b. Which variable is manipulated or changed
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Q: Maria recorded the effects of doing homework on her intelligence. Which of these is a control variable
1 answer
Q: The effect of the time of day a math class is taught on test scores is being examined. Which of these is most likely to be an extraneous factor that would affect test scores
1 answer
Q: In an experiment h is the control variable k is the response variable and l and m are extraneous factors. The specific units of are referred to as the treatments of the experiment
1 answer
Q: Kevin recorded the effects of violent video games on antisocial behavior. Which of these is a response variable
1 answer
Q: In an experiment the control variable is x and the response variable is y. Which variable is manipulated or changed
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Q: In an experiment the control variable is p and the response variable is q. Which variable is not manipulated but measured and represents the data being recorded
1 answer
Q: Derrick decided to use blocking to deal with extraneous factors in his experiment. If 2 treatments are applied to one of his groups how many treatments should be applied to each of his other groups
1 answer
Q: Jenny recorded the effects of eating spinach on her health. Which of these is a control variable
1 answer
Q: In an experiment the control variable is r and the response variable is s. Which variable is not manipulated but measured and represents the data being recorded
1 answer
Q: The same experiment was conducted 8 times. How many times should the results have been similar for them to be valid
1 answer
Q: Ron decided to use blocking to deal with extraneous factors in his experiment. If 4 treatments are applied to one of his groups how many treatments should be applied to each of his other groups
1 answer
Q: A frequency distribution is a way to describe numerical data categorically
1 answer
Q: When representing a frequency distribution with a bar chart which bar will be the tallest
2 answers
Q: The bar chart below represents the number of freshmen sophomores juniors and seniors in a high school who have a GPA over 3.8. How many sophomores have a GPA over 3.8
1 answer
Q: Which of these groups of relative frequencies would be best represented by a pie chart
2 answers
Q: If a coin is flipped 5 times and a head comes up 3 times what is the relative frequency of a head coming up
1 answer
Q: If a coin is flipped 5 times and a head comes up 1 time what is the relative frequency of a head coming up
1 answer
Q: When asked their favorite color 9 students said blue 14 students said green 6 students said red and 2 students said orange. Students with which of these favorite colors will be represented by the smal
1 answer
Q: If there is a 90 chance of rain tomorrow and a 70 chance of wind and rain what is the probability that it is windy given that it is rainy Round your answer to the nearest percent.
1 answer
Q: Find the range and standard deviation of the data set. 22 18 19 25 27 21 24
2 answers
Q: A compound event may consist of dependent or independent events.
1 answer
Q: Once an isolating event occurs a unit's responsibilities include
1 answer
Q: How many outcomes are in the sample space for the event first to toss a coin and then to shoot a basket
1 answer
Q: A planned procedure to test a hypothesis is called bias
1 answer
Q: Why cannot a probability not be less than 0
1 answer
Q: What is he probability that the sum of a pair of dice when rolled is six
1 answer
Q: What is the mean variance and standard deviation for the numbers 2 4 8 2 9 1 7 11 4 7 1 10 1 5
1 answer
Q: What is the geometric mean between 16 and 81
2 answers
Q: What are advantages and disadvantages of frequency polygon
1 answer
Q: Which sampling is obtained by dividing the population into groups and selecting all individuals from within a random sample of the groups
1 answer
Q: Why is the standard deviation used more frequently than the variance
1 answer
Q: What is the probability of three pennies landing all on heads
1 answer
Q: When two dice are rolled the sample space ocnsists of how many events
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Q: What type of research studies population and is often used to search for correlation between dietary habits and disease incidence
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Q: What kind of sample is it when you select individuals who are easily obtained
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Q: What is the difference between the sample of the population and the average of the population
1 answer
Q: What are the chances of picking a boy out of a class with 12 girls and 9 boys
1 answer
Q: Which is a pair of independent events
1 answer
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