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
Data Set: 32, 28, 24, 28, 28, 31, 35, 29, 26 a. Calculate the mean, median...
Directions: Calculate the mean, median, mode, range, variance, and standard deviation (SD) for each set of data. Please show your work on a separate sheet of paper and submit it along with this worksheet. Make sure your name is on the separate sheet. All answers must be written on this sheet. 1. Data Set: 1, 3, 1, 5, 7, 2, 4, 1, 3, 6, 2, 5, 2, 6, 8, 8, 2, 1, and 3 Mean = _____ Median=_____ Mode=_____ ...
Data of BMI: 25 25 26 27 28 30 30 31 32 35 35 38 10) Calculate the standard deviation, variance, and the z-score of someone with a BMI at 21. 11) Is this z-score unusually high or low? (If yes, specify which one). 12) Identify the 5-number summary below 13) Calculate the IQR 14) Identify any outliers 15) Draw a boxplot of your data (modified for outliers) 16) Write a sentence describing the shape of the distribution (skewed or...
24 26 30 28 29 28 29 25 30 26 29 27 32 28 28 27 27 26 25 29 2730 28 27 29 31 27 28 25. Use a stalistical calculator with the data values in exercise 18 to find b. Population standard deviation, assuming x-μ c. Sample standard deviation d.σ2 e. 29. Use the results from exercise 25 to find the following values for the data in exercise 18: What percentage of the data values in exercise 18...
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...
Find the mean absolute deviation of the set of data 16, 20, 24, 25, 28, 29, 31 and 35
Data: 25 25 26 27 28 30 30 31 32 35 35 38 16) Write a sentence describing the shape of the distribution (skewed or symmetric). 17) How close together are your mean and median? Does this support your thoughts of skewness or symmetry for #16? Use the empircal rule to answer the following: 1) Assume the mean is 29 and the standard deviantion is 2. Draw the curve, identify the mean at the center, count out the standard deviations...
Data Set: 6, 1, 4, 2, 3, 4, 6, 8, 9 a. Calculate the mean, median, mode, range, variance and standard deviation (using either formula). b. Compare the two groups in terms of central tendency and variability. What conclusions can you draw from the data in regards to average number of time a student posted, variability of postings, etc?
For the follwoing date find: 30 20 35 17 50 54 64 29 34 23 20 20 21 50 26 26 20 48 20 30 23 29 17 17 20 18 23 36 20 20 1. The Mean= 2. The Median= 3. The Mode= 4. The Range = 5. The Standard Deviation is = 6. The Variance is= 7. Q1Q1 = 8. Q3Q3 = 9. IQR= 10. Upper Fence= 11. Lower Fence is = 12.If you graphed the data above,...
Data set (observations) : 28 30 30 29 12 28 31 32 mean: 27.5 standard deviation: 6.887 a) how many observations are within 2 standard deviations from the mean? b) are there any outliers in this dataset? name 3 things we might do with an outlier
Calculate the mean, median, mode, range and standard deviation of the data: -5, -3, -3, 4,9 a) mean 1.8, median-3, mode 3, range 14, standard deviation 5.7 b) mean 0.4, median 4, mode--5, range 15, standard deviation 5.9 c) mean-1.8, median--5, mode--3, range 13, standard deviation 5.7 d) mean 0.4, median-3, mode3, range 14, standard deviation 5.9 e) None of the above Question 9 Calculate the mean, median, mode, range and standard deviation of the data: -120, -45, -45, 14,...