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Owner: w1793870
Created: Sep 14, 2019
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2.2 Quantative Data
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Data set 1. Class Activity 2.2 - Quantitative Data   [Info]
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The data shows the scores of 32 students on an algebra test and the ages of the 54 wealthiest individuals of the world. 

Result 1: Scores of 32 Students Stem and Leaf   [Info]

Variable: Scores of 32 students on an algebra exam



Decimal point is 1 digit(s) to the right of the colon.
Leaf unit = 1
4 : 578
5 : 1
5 : 6
6 : 4
6 : 589
7 : 114
7 : 556669
8 : 2233
8 : 668
9 : 01224
9 : 68

Based on the results, the stem and leaf plot for the scores of the 32 students shows the lowest score of 45 to the highest score of 98. 

Result 2: Scores of 32 Students Frequency Distribution   [Info]

Frequency table results for Scores of 32 students on an algebra exam:


Count = 32
Scores of 32 students on an algebra examFrequency
40 to 503
50 to 602
60 to 704
70 to 809
80 to 907
90 to 1007

Based on the results, the frequency distribution varies for each score. Examples would would be the 3 students who scored between 40-49 and 7 students scored between 80-89.

Result 3: Scores of 32 students Relative Frequency   [Info]

Frequency table results for Scores of 32 students on an algebra exam:


Count = 32
Scores of 32 students on an algebra examRelative Frequency
40 to 500.09375
50 to 600.0625
60 to 700.125
70 to 800.28125
80 to 900.21875
90 to 1000.21875

Based on the results, the relative frequency shows that students scored more between 70-79 and 80-89 than 40-49 or 50-59.

Result 4: Scores of 32 Students Histogram (Frequency)   [Info]
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Result 5: Scores of 32 Students Histogram (Relative Frequency)   [Info]
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Based on the results of the histograms both frequency and relative frequency shows that more students scored a higher number on the algebra test because the histogram is skewed left. 

Data set 1. Class Activity 2.2 - Quantitative Data   [Info]
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Result 6: Ages of 54 wealthiest Stem and Leaf   [Info]

Variable: Ages of the 54 wealthiest individuals in the world



Decimal point is 1 digit(s) to the right of the colon.
Leaf unit = 1
3 : 14
3 : 6
4 : 123334
4 : 6
5 : 0011124
5 : 56889999
6 : 012222
6 : 68889
7 : 1122334
7 : 555679
8 : 1224
8 : 8

Based on the results, the stem and leaf plot for the ages of the 54 wealthiest individuals of the world shows that youngest individuals are 31 years old and the oldest individuals are 88 years old.

Result 7: Ages of 54 Wealthiest Frequency Distribution   [Info]

Frequency table results for Ages of the 54 wealthiest individuals in the world:


Count = 54
Ages of the 54 wealthiest individuals in the worldFrequency
30 to 403
40 to 507
50 to 6015
60 to 7011
70 to 8013
80 to 905

Based on the results, the frequency distribution shows that at least 3 of the wealthiest individuals are between 30-39 years old and 5 individuals that are between 80-89 years old. 

Result 8: Ages of 54 Wealthiest Relative Frequency Distribution   [Info]

Frequency table results for Ages of the 54 wealthiest individuals in the world:


Count = 54
Ages of the 54 wealthiest individuals in the worldRelative Frequency
30 to 400.055555556
40 to 500.12962963
50 to 600.27777778
60 to 700.2037037
70 to 800.24074074
80 to 900.092592593

Based on the results, the relative frequency distribution shows that there are more wealthy individuals that are between the ages of 40-49,50-59,60-69,70-79 years old than 30-39 and 80-89 years old.

Result 9: Ages of 54 Wealthiest Frequency Histogram   [Info]
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Result 10: Ages of 54 Wealthiest Relative Frequency Histogram   [Info]
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Based on the results, the histograms of frequency and relative frequency support that the wealthiest individuals in the world are middle aged individuals due tot the bell-shape of the histogram.

 

 

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