How many caffeine drinks per day        Count of how many caffeine drinks per day 3 61 2 54 4 38 1 31 0 27 5 23 6 14 7 5 8 5 10 1 2.5 1 1.5 1 9 1 Grant total  262 Calculate the mean, standard deviation, and variance for the variable “How many caffeine drinks per day”. What is the median and range “How many caffeine drinks per day” Determine the first quartile (Q1), third quartile (Q3), and interquartile range (IQR) for the variable “How many caffeine drinks per day”.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
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How many caffeine drinks per day        Count of how many caffeine drinks per day

3 61
2 54
4 38
1 31
0 27
5 23
6 14
7 5
8 5
10 1
2.5 1
1.5 1
9 1
Grant total  262
  1. Calculate the mean, standard deviation, and variance for the variable “How many caffeine drinks per day”.
  2. What is the median and range “How many caffeine drinks per day”
  3. Determine the first quartile (Q1), third quartile (Q3), and interquartile range (IQR) for the variable “How many caffeine drinks per day”.
  4. Calculate the lower and upper limits using the quartile method to determine if there are any outliers for the variable “How many caffeine drinks per day”.
  5. Calculate the lower and upper limits using the standard deviation method to determine if there are any outliers for the variable “How many caffeine drinks per day”.

 

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