a) Briefly describe the shape of this stemplot. Your answer should consider whether the distribution is unimodal, bimodal or multimodal, whether it is symmetric, right-skew or left-skew and whether or not there are outliers. Justify your conclusions. b) It was later discovered that the university with score 0.87 should have had score 0.78. Without doing any calculations, comment, with a reason, on the impact this will have on:the meanthe medianthe range Do not use Minitab to answer this question.Each year the National Student Survey asks final year students for theirviews on various aspects of their degree course. The stemplot (Figure 3below) uses data from students studying technology part time. It shows whatproportion of them had positive views on the assessment at their institution.Stem-and-leaf of Approval rating N = 39Figure 313 423 834054 5710 500123135 78919 6014444(2) 6780001122218 710 758978 22348 67291196Leaf Unit =0.01

I explained all things in solution Explanation:Step 1: Part a) A stem-and-leaf plot is a type of…

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Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Question

a) Briefly describe the shape of this stemplot. Your answer should consider whether the distribution is unimodal, bimodal or multimodal, whether it is symmetric, right-skew or left-skew and whether or not there are outliers. Justify your conclusions.

b) It was later discovered that the university with score 0.87 should have had score 0.78. Without doing any calculations, comment, with a reason, on the impact this will have on:

the mean
the median
the range

Do not use Minitab to answer this question.
Each year the National Student Survey asks final year students for their
views on various aspects of their degree course. The stemplot (Figure 3
below) uses data from students studying technology part time. It shows what
proportion of them had positive views on the assessment at their institution.
Stem-and-leaf of Approval rating N = 39
Figure 3
1
3 4
2
3 8
3
40
5
4 57
10 5
00123
13
5 789
19 6
014444
(2) 6
78
00011222
18 7
10 7
589
7
8 223
4
8 67
2
91
1
96
Leaf Unit =0.01

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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