A network provider investigates the load of its network. The number of concurrent users is recorded at Seventy -seven locations (thousands of people), 55.3 55.3 55.3 55.9 55.9 55.9 55.9 56.1 56.1 56.1 56.1 56.1 56.1 56.8 56.8 57.0 57.0 57.0 57.8 57.8 57.8 57.9 57.9 57.9 58.8 58.8 58.8 59.8 59.8 59.8 62.2 62.2 63.8 63.8 63.8 63.9 63.9 63.9 64.7 64.7 64.7 65.1 65.1 65.1 65.3 65.3 65.3 65.3 67.4 67.4 67.4 67.4 68.7 68.7 68.7 68.7 69.0 70.4 70.4 71.2 71.2 71.2 73.0 73.0 73.1 73.1 74.6 74.6 74.6 74.6 79.3 79.3 79.3 79.3 83.0 83.0 83.0 i. Construct a grouped frequency distribution for the data using five classes. ii. Compute the sample mean, variance, and standard deviation of the number of concurrent users. iii. Construct a frequency histogram for the data b) It is reported that the number of concurrent users follows a positive skew distribution. Does the histogram support this claim?
A network provider investigates the load of its network. The number of concurrent users is
recorded at Seventy -seven locations (thousands of people),
55.3 55.3 55.3 55.9 55.9 55.9 55.9 56.1 56.1 56.1 56.1
56.1 56.1 56.8 56.8 57.0 57.0 57.0 57.8 57.8 57.8 57.9
57.9 57.9 58.8 58.8 58.8 59.8 59.8 59.8 62.2 62.2 63.8
63.8 63.8 63.9 63.9 63.9 64.7 64.7 64.7 65.1 65.1 65.1
65.3 65.3 65.3 65.3 67.4 67.4 67.4 67.4 68.7 68.7 68.7
68.7 69.0 70.4 70.4 71.2 71.2 71.2 73.0 73.0 73.1 73.1
74.6 74.6 74.6 74.6 79.3 79.3 79.3 79.3 83.0 83.0 83.0
i. Construct a grouped frequency distribution for the data using five classes.
ii. Compute the sample mean, variance, and standard deviation of the number of
concurrent users.
iii. Construct a frequency histogram for the data
b) It is reported that the number of concurrent users follows a positive skew distribution.
Does the histogram support this claim?
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