Question

1 | 0,1,5,5,5,7

2|1,5,6,6,7,8

3| 0,0,2,2,3,4,8,8,9

4| 1,2,2,2,3,8

5|2,2,3,8,9

6|1,5,5

what is the mean - 37.42 36.61 34 38

what is the median - 37.42 36.61 34 38

what is the IQR - 38 42 35 or 24

is the data left or right skewed or relatively symmetric

what method of presenting data is this

stem leaf plot

inverted histogram

horizontal bar chart

histogram

Answer 1

if we convert this stem and leaf plot into normal data table we will get values as given below

x
10
11
15
15
15
17
21
25
26
26
27
28
30
30
32
32
33
34
38
38
39
41
42
42
42
43
48
52
52
53
58
59
61
65
65

on calculating this we will get mean=36.14

median =34

while Q1=26 and Q3 =45.5

Hence IQR=Q3-Q1=45.5-26=19.5

Since Mean is more than median so its right-skewed

data is represented in stem leaft plot