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olya-2409 [2.1K]
3 years ago
5

Use a stem-and-leaf plot to display the data, which represent the scores of a biology class on a midterm exam. Describe any patt

erns.
85
80
87
67
88
95
91
78
75
84
90
94
82
98
80
89
92
68
75
91
87
76
91
85
Determine the leaves in the stem-and-leaf plot below.
Key: 3|3 = 33
Exam Scores
6|
7|
8|
9|

*this is for statistics, any help is appreciated please*

Mathematics
1 answer:
RoseWind [281]3 years ago
7 0

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data :

85

80

87

67

88

95

91

78

75

84

90

94

82

98

80

89

92

68

75

91

87

76

91

85

STEM | LEAF

6 | 7 _ 8

7 | 5 _ 5 _ 6 _ 8

8 | 0_0_2_4_5_5_7_7_8_9

9 | 0_1_1_1_2_4_5_3

The statistics which could be obtained fro the data include; The range = (98 - 67) = 31

Number of observations = 24

Mode of data = 91 ( most occurring number)

Median = 50th percentile = 86

Mean = Σx / N

= Σx = 2028

Mean = 2028 / 24 = 84.5

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