A. What are the types of variables? B. Are they discrete or continuous? C. Calcu

Question

A. What are the types of variables? B. Are they discrete or continuous? C. Calculate the mean and standard deviation for each of these variables. Use excel or any other statistical software to calculate the mean and standard deviation. 1. Consider the following data set. The data set has data for three variables: Height, weight and pulse Rate Height Weight Pulse 70.8 169.1 68 66.2 144.2 64 71.7 179.3 88 68.7 175.6 67.6 152.6 69.2 166.8 72. 66.5 135.0 60 2 2015 88 68.3 1752 76 65.6 139.0 63.0 156.3 96 68.31 1866 72 1911 56 73.1 676 151.3 68.0 209.4 60 71.0 2371 64 61.3 176.7 84 76.2 220.6 76 66.3 166.1 84 69.7 137.4 88 65.4 164.2 72 700 162.4 56 62.9 68.5 144.1 64 68.3 204.6 60 694 1938 60 69.2 172.9 68.0 161.9 60 174.8 56 1.9 84 66.1 169.8 7224 2133 72 73.0 198.0 84 680 88 68.7 214.5 56 70.3 137.1 64 56 71.1 56 656 164.7 64 66.3 151.0 72

Explanation / Answer

A:

Variables are quantitative.

B:

Variable height and weight are continuous variable.

Variable pulse is discrete variable.

C:

Following table shows the mean and SD of the data:

Descriptive statistics Height Weight Pulse count 40 40 40 mean 68.335 172.550 69.40 sample standard deviation 3.020 26.327 11.30 sample variance 9.118 693.119 127.63

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