# Graphical Representation for the Given Data by ClassOf1

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Sub: Statistics                                                        Topic: Graphical Representation

Graphical Representation for the Given Data

Question:

The following 30 scores on the mathematics portion of the SAT were achieved by a sample of 30
students. 500, 510, 514, 516, 519, 521, 522, 522, 527, 514, 528, 535, 540, 542, 545, 553, 555, 558,
561, 571, 572, 574, 577, 578, 580, 583, 584, 588, 589, 592.
Construct a dot plot, box plot, and stem-and-leaf display to discuss any patterns in the data set.

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Sub: Statistics                                                        Topic: Graphical Representation

Solution:

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*The Homework solutions from Classof1 are intended to help students understand the approach to solving the problem and not for
Sub: Statistics                                                        Topic: Graphical Representation
Steam and leaf chart:

Steam         Leaf

50       0

51       0,     4,4,6,9

52       1,     2,2,7,8

53       5

54       0,     2,5

55       3,     5,8

56       1

57       1,    2,4,7,8

58       0, 3 ,4,8,9

59       2

From dot plot, box-plot and steam and leaf chart we observe that there is no pattern in the data.
From steam and leaf chart we observe that the distribution of data is bimodal.

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*The Homework solutions from Classof1 are intended to help students understand the approach to solving the problem and not for