data("discoveries")

Question #1

We have information and data on years 1860 to 1959.

Question #2

Based on the data, there were 0 discoveries in 1863.

Question #3

Another question we could explore using the data set is “What number of great discoveries occurs most often, as recorded by the World Almanac and Book of Facts?”

Question #4

max(discoveries)
## [1] 12

The largest number of discoveries recorded by the World Almanac and Book of Facts is 12.

Question #5

plot(discoveries)

The largest number of discoveries was made in the 19th century.

Question #6

The X axis measures the years, starting at 1860 and ending at 1960. The Y axis measures the number of great discoveries in each year inclulded on the X axis. In general, this graph tells the story of how many great discoveries were made each year from 1860 to 1960, especially highlighting which years had a large number and a small number of discoveries.

Question #7

mean(discoveries)
## [1] 3.1

The mean number of discoveries per year is 3.1.

Question #8

min(discoveries)
## [1] 0

The minimum number of discoveries across the years 1860 to 1959 is 0.

data(faithful)

Question #9

There are 2 columns (eruptions and waiting) and 272 rows in the “faithful” data set.

Question #10

There are two numeric variables in this set: eruptions is a numeric continuous variable, and waiting is a numeric discrete variable. There are no catagorical variables.

Question #11

faithful$waiting
##   [1] 79 54 74 62 85 55 88 85 51 85 54 84 78 47 83 52 62 84 52 79 51 47 78 69 74
##  [26] 83 55 76 78 79 73 77 66 80 74 52 48 80 59 90 80 58 84 58 73 83 64 53 82 59
##  [51] 75 90 54 80 54 83 71 64 77 81 59 84 48 82 60 92 78 78 65 73 82 56 79 71 62
##  [76] 76 60 78 76 83 75 82 70 65 73 88 76 80 48 86 60 90 50 78 63 72 84 75 51 82
## [101] 62 88 49 83 81 47 84 52 86 81 75 59 89 79 59 81 50 85 59 87 53 69 77 56 88
## [126] 81 45 82 55 90 45 83 56 89 46 82 51 86 53 79 81 60 82 77 76 59 80 49 96 53
## [151] 77 77 65 81 71 70 81 93 53 89 45 86 58 78 66 76 63 88 52 93 49 57 77 68 81
## [176] 81 73 50 85 74 55 77 83 83 51 78 84 46 83 55 81 57 76 84 77 81 87 77 51 78
## [201] 60 82 91 53 78 46 77 84 49 83 71 80 49 75 64 76 53 94 55 76 50 82 54 75 78
## [226] 79 78 78 70 79 70 54 86 50 90 54 54 77 79 64 75 47 86 63 85 82 57 82 67 74
## [251] 54 83 73 73 88 80 71 83 56 79 78 84 58 83 43 60 75 81 46 90 46 74

The command faithful:eruptions would access the column containing information about the eruptions.

faithful$eruptions
##   [1] 3.600 1.800 3.333 2.283 4.533 2.883 4.700 3.600 1.950 4.350 1.833 3.917
##  [13] 4.200 1.750 4.700 2.167 1.750 4.800 1.600 4.250 1.800 1.750 3.450 3.067
##  [25] 4.533 3.600 1.967 4.083 3.850 4.433 4.300 4.467 3.367 4.033 3.833 2.017
##  [37] 1.867 4.833 1.833 4.783 4.350 1.883 4.567 1.750 4.533 3.317 3.833 2.100
##  [49] 4.633 2.000 4.800 4.716 1.833 4.833 1.733 4.883 3.717 1.667 4.567 4.317
##  [61] 2.233 4.500 1.750 4.800 1.817 4.400 4.167 4.700 2.067 4.700 4.033 1.967
##  [73] 4.500 4.000 1.983 5.067 2.017 4.567 3.883 3.600 4.133 4.333 4.100 2.633
##  [85] 4.067 4.933 3.950 4.517 2.167 4.000 2.200 4.333 1.867 4.817 1.833 4.300
##  [97] 4.667 3.750 1.867 4.900 2.483 4.367 2.100 4.500 4.050 1.867 4.700 1.783
## [109] 4.850 3.683 4.733 2.300 4.900 4.417 1.700 4.633 2.317 4.600 1.817 4.417
## [121] 2.617 4.067 4.250 1.967 4.600 3.767 1.917 4.500 2.267 4.650 1.867 4.167
## [133] 2.800 4.333 1.833 4.383 1.883 4.933 2.033 3.733 4.233 2.233 4.533 4.817
## [145] 4.333 1.983 4.633 2.017 5.100 1.800 5.033 4.000 2.400 4.600 3.567 4.000
## [157] 4.500 4.083 1.800 3.967 2.200 4.150 2.000 3.833 3.500 4.583 2.367 5.000
## [169] 1.933 4.617 1.917 2.083 4.583 3.333 4.167 4.333 4.500 2.417 4.000 4.167
## [181] 1.883 4.583 4.250 3.767 2.033 4.433 4.083 1.833 4.417 2.183 4.800 1.833
## [193] 4.800 4.100 3.966 4.233 3.500 4.366 2.250 4.667 2.100 4.350 4.133 1.867
## [205] 4.600 1.783 4.367 3.850 1.933 4.500 2.383 4.700 1.867 3.833 3.417 4.233
## [217] 2.400 4.800 2.000 4.150 1.867 4.267 1.750 4.483 4.000 4.117 4.083 4.267
## [229] 3.917 4.550 4.083 2.417 4.183 2.217 4.450 1.883 1.850 4.283 3.950 2.333
## [241] 4.150 2.350 4.933 2.900 4.583 3.833 2.083 4.367 2.133 4.350 2.200 4.450
## [253] 3.567 4.500 4.150 3.817 3.917 4.450 2.000 4.283 4.767 4.533 1.850 4.250
## [265] 1.983 2.250 4.750 4.117 2.150 4.417 1.817 4.467

Question #12

The command max(faithful$eruptions) will give us the maximum number of eruptions in the data set.

max(faithful$eruptions)
## [1] 5.1

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