1. state the definition of sample as it appears on page 16

Data are collected from a sample, which is a subset of the population.

2. state the definition of population, as it appears on page 16

A population includes all individuals or objects of interest.

3. state the definition of statistical inference as it appears on page 17

Statistical inference is the process of using data from a sample to gain information about the population.

4. import the HollywoodMovies2011 dataset

HollywoodMovies2011 <- read.csv("C:/Users/k13fl01/Desktop/Math 260/HollywoodMovies2011.csv")

5. use the nrow() command to determine that there are 136 cases in the dataset

nrow(HollywoodMovies2011)
## [1] 136

6. use the concatenate command c() to generate a list of all counting numbers between 1 and 136

##   [1]   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17
##  [18]  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34
##  [35]  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51
##  [52]  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68
##  [69]  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85
##  [86]  86  87  88  89  90  91  92  93  94  95  96  97  98  99 100 101 102
## [103] 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119
## [120] 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136

7. use the sampling command sample() to select five of the numbers in your list at random

 sample(c(1:136),5)
## [1]  28  68  51  25 130

8. Display all variable values for the five films corresponding to your random sample using the square bracket notation 

HollywoodMovies2011[sample(c(1:136),5), ]
##                        Movie            LeadStudio RottenTomatoes
## 62                 Abduction Vertigo Entertainment              4
## 125          Mars Needs Moms                Disney             36
## 57                      Paul            Relativity             72
## 126 Dylan Dog: Dead of Night           Independent              6
## 26           Kung Fu Panda 2  DreamWorks Animation             82
##     AudienceScore         Story     Genre TheatersOpenWeek
## 62             46    Maturation    Action             3118
## 125            43        Rescue Animation             3117
## 57             70        Comedy    Comedy             2802
## 126            28 Monster Force    Horror               NA
## 26             80       Rivalry Animation             3925
##     BOAverageOpenWeek DomesticGross ForeignGross WorldGross Budget
## 62               3504         28.07        54.00     82.069     35
## 125              2218         21.39        17.60     38.992    150
## 57               4655         37.41        60.57     97.983     40
## 126                NA          1.19         3.45      4.633     20
## 26              12142        165.25       497.78    663.024    150
##     Profitability OpeningWeekend
## 62      2.3448286          10.93
## 125     0.2599467           6.91
## 57      2.4495750          13.04
## 126     0.2316500           0.75
## 26      4.4201600          47.66