If the median of a set of data is equal to the mean, then (a) The data are Norm...continues
(a) The data are Normally distributed.
(b) The data are approximately Normally distributed.
(c) The distribution is skewed.
(d) The distribution is symmetric.
(e) One can’t say anything about the shape of the distribution with any certainty.
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If the median of a set of data is equal to the mean, then (a) The data are Norm...continues
A data set has a mean of 6.5 and a median of 4. What shape would...
A data set has a mean of 6.5 and a median of 4. What shape would you expect this data set to take on? Select one: a. Skewed left b. Skewed right O c. Symmetric
If most of the prices in a large data set are of approximately the same magnitude...
If most of the prices in a large data set are of approximately the same magnitude except for a few observations that are quite a bit larger, how would the mean and median of the data set compare and what shape would a histogram of the data set have? A.The mean would be larger than the median and the histogram would be skewed with a long right tail. B. The mean would be smaller than the median and the histogram...
The mean amount families spent on groceries per week was $283 The median amount was $300....
The mean amount families spent on groceries per week was $283 The median amount was $300. The shape of the distribution is: A. Left skewed B. Bimodal C. Symmetric D. Right skewed Which description below best fits this distribution? O A. The amounts are evenly distributed B. Most amounts are higher, a few are lower C. Most amounts are lower, a few are higher D. Most amounts are in the middle of the range
A sample size of 50 is taken. Its mean is 60 and its median 90. What...
A sample size of 50 is taken. Its mean is 60 and its median 90. What statement would be true about the histogram constructed from this sample a) it would be skewed to the right b) its shape could not be determined without knowing the relative frequencies c) It would be approximately symmetric d) it would be skewed to the left c) None of the above
Q1. 1 mark When the data values are evenly distributed about the mean, a distribution is...
Q1. 1 mark When the data values are evenly distributed about the mean, a distribution is said to be a a. positively skewed distribution b. negatively skewed distribution c. normal distribution d. skewed distribution S 1 mark Q2. Choose the correct statement for a normal distribution. a. It has no mode b. The mean, median, and mode are equal and are located at the center of the distribution c. The curve crosses the x axis (horizontal axis) at origin d....
1. Select all true statements about sample mean and sample median. A) When the population distribution...
1. Select all true statements about sample mean and sample median. A) When the population distribution is skewed, sample mean is biased but sample median is an unbiased estimator of population mean. B) When the population distribution is symmetric, both mean and sample median are unbiased estimators of population mean. C) Sampling distribution of sample mean has a smaller standard error than sample median when population distribution is normal. D) Both mean and median are unbiased estimators of population mean...
Provide an appropriate response. Find the mean, median, and mode of the following statistic students' test...
Provide an appropriate response. Find the mean, median, and mode of the following statistic students' test scores 71 74 67 71 64 72 71 65 66 69 15 Calculate the 5-number summary 16. The distribution of salaries of professional basketball players is skewed to the right. Which measure of central tendency would be the best measure to determine the location of the center of the distribution 16). C) mean C)frequency A median B) mode 17 and median? 17 Frequency distributions...
24. Find the mean and median of the above sample and describe its shape. 2 5....
24. Find the mean and median of the above sample and describe its shape. 2 5. For continuous data it is best to use a histogram or a dot plot to graphically describe its shape. 26. For problem #12 list the relative and cumulative relative frequency for each interval. 27. Do the same as #26 for problem #20. 28. Find the standard deviation, range and IQR for the following sample. (3,7,9,11,23,23,37,43,46,54) 29. If the distribution is right-skewed, what is the...
mean was 0% 85, the median is 86, range from 50 to 95. Describe the level...
mean was 0% 85, the median is 86, range from 50 to 95. Describe the level of the test based on the shape of the distribution of scores . In Pall 2018, the STA105 test 2 scores for all section stundkents have the following characteristics The distribution is skewed to the left, the test is an casy test. b. The distribution is skewed to the left, the test is a hard test c. The distribution is skewed to the right,...
Data Set: 32, 28, 24, 28, 28, 31, 35, 29, 26 a. Calculate the mean, median...
Data Set: 32, 28, 24, 28, 28, 31, 35, 29, 26 a. Calculate the mean, median and mode b. Based on your answers from Part A, describe how the data is distributed (symmetrical, positively / negatively skewed) c. Calculate the range d. Calculate the variance and standard deviation using the definition formula e. Calculate the variance and standard deviation using the computation formula
A data set has a mean of 6.5 and a median of 4. What shape would you expect this data set to take on? Select one: a. Skewed left b. Skewed right O c. Symmetric
The mean amount families spent on groceries per week was $283 The median amount was $300. The shape of the distribution is: A. Left skewed B. Bimodal C. Symmetric D. Right skewed Which description below best fits this distribution? O A. The amounts are evenly distributed B. Most amounts are higher, a few are lower C. Most amounts are lower, a few are higher D. Most amounts are in the middle of the range
Q1. 1 mark When the data values are evenly distributed about the mean, a distribution is said to be a a. positively skewed distribution b. negatively skewed distribution c. normal distribution d. skewed distribution S 1 mark Q2. Choose the correct statement for a normal distribution. a. It has no mode b. The mean, median, and mode are equal and are located at the center of the distribution c. The curve crosses the x axis (horizontal axis) at origin d....
Provide an appropriate response. Find the mean, median, and mode of the following statistic students' test scores 71 74 67 71 64 72 71 65 66 69 15 Calculate the 5-number summary 16. The distribution of salaries of professional basketball players is skewed to the right. Which measure of central tendency would be the best measure to determine the location of the center of the distribution 16). C) mean C)frequency A median B) mode 17 and median? 17 Frequency distributions...
24. Find the mean and median of the above sample and describe its shape. 2 5. For continuous data it is best to use a histogram or a dot plot to graphically describe its shape. 26. For problem #12 list the relative and cumulative relative frequency for each interval. 27. Do the same as #26 for problem #20. 28. Find the standard deviation, range and IQR for the following sample. (3,7,9,11,23,23,37,43,46,54) 29. If the distribution is right-skewed, what is the...
mean was 0% 85, the median is 86, range from 50 to 95. Describe the level of the test based on the shape of the distribution of scores . In Pall 2018, the STA105 test 2 scores for all section stundkents have the following characteristics The distribution is skewed to the left, the test is an casy test. b. The distribution is skewed to the left, the test is a hard test c. The distribution is skewed to the right,...
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