Given data - X :- 7,9,12,5,8
Mean = sum / n = 41 / 5 = 8.2
(Xi - mean )² = 1.44, 0.64, 14.44, 10.24, 0.04
SSdif = sum(Xi-mean)² = 26.8
Sample variance = SSdif / n-1 = 26.8/4 = 6.7
Sample standard deviation = sqrt ( variance ) = sqrt(6.7) = 2.588 ~ 2.6
Use the formula to find the variance and the standard deviation for the given sample data....
not Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data. Points: 5 19) The numbers listed below represent the amount of precipitation (in inches) last year in six different U.S. cities. 15.0 12.0 43.7 36.2 23.3 15.9 A) 3557.5 in. B) 12.86 in. C) 4384.8 in. D) 40.0 in. Explain how you found the standard deviation. Assume that the weight loss for the first month...
6. Find the standard deviation for the given sample data. Round your answer to one or more decimal place than is present in the original data. 7. Formulate the indicated hupotheses and conclusion. Be sure to address original claim. 8. Construct the dotplot for thr given data. in the original data. and the standard deviation for the given sample data. Round your answer to one more decimal place than is present Points: 5 6) Listed below are the amounts of...
find the sample variance and standard deviation Find the sample variance and standard deviation. 8,56, 12, 47, 33, 25, 33, 27, 29, 28 Choose the correct answer below. Fill in the answer box to complete your choice. (Round to two decimal places as needed.) O A ² = OB. 02 Choose the correct answer below. Fill in the answer box to complete your choice. (Round to one decimal place as needed.) O A = OB. s-
Given the following data. Find the mean , Variance and the standard deviation of the sample. Classes Freq. X XF x – X (x – X )2 ( x –X )2F 2 – 4 2 5 _ 7 5 8 – 10 3 Show your work please, Thank You!
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Find the variance for the given sample data. Round your answer to one more decimal place than the original data. 22 22 26 24 O 3.67 9.1 O 1.9 03.01
Calculate the sample standard deviation and sample variance for the following frequency distribution of heart rates for a sample of American adults. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Heart Rates in Beats per Minute Class Frequency 51 - 58 7 59 - 66 13 67 - 74 11 75 - 82 5 83 - 90 3
Calculate the sample variance and sample standard deviation for the following frequency distribution of heart rates for a sample of American adults. If necessary, round to one more decimal place than the largest number of decimal places given in the data. Heart Rates in Beats per Minute Class Frequency 51 - 58 7 59 - 66 13 67 - 74 11 75 - 82 5 83 - 90 3
Find the standard deviation for the given sample data. Round your answer to one more decimal place than is present in the original data. 14) Christine is currently taking college astronomy. The instructor often gives quizzes. On the past seven quizzes, Christine got the following scores: 50 15 31 27 11 42 71 A) 11,341 14) B) 31 C) 20.9 D) 8715 6