Question 1 )
Data
22,24,28,31,35
Mean = sum /n = 140/5 = 28
(Xi - mean )² = (36, 16, 0, 9, 49)
SSdif = sum(Xi - mean )² =110
Sample standard deviation = sqrt [ ( SSdif / n-1 ) ]
Sd = sqrt ( 27.5 ) = 5.24
Answer :- 5.2
Question 2 )
We know that
Relative frequency = current frequency / total frequency
We have to find total frequency
Consider class 22-29
0.16 = 4 / TF
TF = 4 / 0.16 = 25
Now find the missing frequency
Total frequency = Sum of all frequency
25 = 4+6+x+5 = 15+x
x = 25 - 15 = 10
This is the frequency of class 40-49
Question 10 1 pts Calculate sample standard deviation for the following data collection: 22, 24, 28,...
O descriptive O inferential D Question 2 1 pts Table below shows example of frequency and relative-frequency distribution. Relative Interval Frequency f 22-29 30-39 40-49 50-59 Total frequency 0.16 4 6 0.24 0.40 0.20 1.00 5 Find missing frequency for interval 40-49. O 8 O 10 O 12 O 15 Question 9 1 p Calculate sample variance for the following data collection: 10, 25, 28, 35 (when you calculate variance, divide by N-1 not by N) O 85 O 150...
DerReleycollege.instructure.com Quiz Instructions D Question 1 1 pts Randomly selected 50 people from New York City were asked if they use a subway to get to the work place. 40 said "Yes". Based on this sample data was made a statement that 80% of the whole population of New York City take subway to get to the work place. Does this statement represent descriptive or inferential statistics? O descriptive O inferential 5:00 PM 11% a berkeleycollege.instructure.com D Question 2 1...
1 pts Based on this Histogram, what percentage of data are below 41? 7 6 5 4 2 1 11-20 21-30 31-40 41-50 51-60 о 40% O 50% o 65% O 75% Question 10 1 pt Calculate sample standard deviation for the following data collection: 22, 24, 28, 31, 35 (use formula for sample, not for population: when you calculate variance divide by N-1 not by O 5.2 O 6.4 O 7.1 O 8.0
Question 9 1 pts Calculate sample variance for the following data collection: 10, 25, 28, 35 (when you calculate variance, divide by N-1 not by O 85 O 150 O 180 Question 8 1 pts Based on this Histogram, what percentage of data are below 41? 8 6 2 11-20 21-30 31-40 41-50 51-60 o 40% O 5096 65% 7596
Question 9 1 pts Calculate sample variance for the following data collection: 10, 25, 28, 35 (when you calculate variance, divide by N-1 not by O 85 O 150 O 180 Page D, Elementa a berkeleycollege.instructure.com due Jan This is a graded discussion: 1 point possible 2 DB-4 Chapter 3:Descriptive Statistics. The mean and the median are two types of measures of center. 1. Give a real-world example of when the median preferred over the mean. Refer to the eText...
Question 3 1 pts Calculate Sample Variance for the following data collection: 10, 11, 12, 13, 14, 18. O 8.0 O 6.8 4.6 O 2.4 8:54 PM 21 eopleSc xCourseH HW-03 Week 3: S X eycollege.instructure.com ! ☆山 0/1 pts Question4 Calculate Sample Standard Deviation for the following data collection: 4, 6, 10, 14, 16. 4.28 O 3.46 5.10 7.24
This Question: 1 pt 24 of 24 (6 complete) This Test: 24 pts The following data show the ages of recent award-winning male actors at the time when they won their award. Make a frequency table for the data, using bins of 20-29, 30-39, and so on. Click the icon to view the ages of male actors. Complete the table below. Age No. of actors 20-29 30-39 40-49 50-59 60-69 Data Table ODDODD 70-79 33 43 44 31 25 31...
O 7.24 Question 5 1 pts Find Quartiles 01, 92 and Q3 for the following data collection: 48, 32, 23, 14, 24, 45, 50, 42, 56, 90, 66, 71, 68, 70 O Q1 14, Q2-48, Q3 90 O Q1 = 48, Q2 = 45, Q3 = 71 ( Q1-32, Q2 49, Q3 68 0 Q1 23, Q2 50, Q3 90 O 36 O 29 D Question 3 1 pts Calculate Sample Variance for the following data collection: 10, 11, 12,...
Score: 0 of 1 pt 4 of 24 ( complete HW Score: 22 2296, 5.33 of 24 pts 2.1.14 Question Help The following data show the ages of recent award-winning male actors at the time when they won their award. Make a frequency table for the data, using bins of 20-20, 30-39, and so on. m Click the icon to view the ages of male actors Complete the table below. Age No. of actors 20-29 30-39 40-49 50-59 Data Table...
Find the standard deviation, s, of sample data summarized in the frequency distribution table given below by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. Also, compare the computed standard deviation to the standard deviation obtained from the original list of data values, 9.0. n [ (tox?)]- [><f• x))? S= n(n-1) 40-49 50-59 70-79 80-89 Interval Frequency 30-39 3 60-69 18 24 39 8...