Question

You are a teacher of a group of 30 students and then take the test.

56 50 45 42 33 34 42 55 58 51 50 48

34 42 48 49 30 25 22 44 56 52 48 49

48 40 45 51 47 39.

1. Organize the scores
into a simple frequency distribution.

2. Calculate the fashion

3. Calculate the median

4. Calculate the average

5. Calculate the Mean Deviation

6. Calculate the Standard Deviation of the scores and interpret the
result (heterogeneous or homogeneous).

7. Calculate the variance

8. Convert the scores into percent and grant the corresponding
grade (grade):

90 - 100 A

80 - 89 B

70 - 79 C

60 - 69 D

0 - 59 F

9. Illustrate the result of the notes on a pie chart

10. Illustrate the result of the notes in a bar graph

Answer #1

1.

Marks |
Frequency |

22 |
1 |

25 |
1 |

30 |
1 |

33 |
1 |

34 |
2 |

39 |
1 |

40 |
1 |

42 |
3 |

44 |
1 |

45 |
2 |

47 |
1 |

48 |
4 |

49 |
2 |

50 |
2 |

51 |
2 |

52 |
1 |

55 |
1 |

56 |
2 |

58 |
1 |

N= |
30 |

2.

Median of Marks

Median of Marks = 47.5

3.

Mean of Marks

Mean of Marks = 44.4333

4.

Mean deviation about mean = 7.08000

5.

Standard deviation of Marks = 9.04656

6.

Variance 81.8402

Student Grades
Student
Test
Grade
1
76
62
2
84
90
3
79
68
4
88
84
5
76
58
6
66
79
7
75
73
8
94
93
9
66
65
10
92
86
11
80
53
12
87
83
13
86
49
14
63
72
15
92
87
16
75
89
17
69
81
18
92
94
19
79
78
20
60
71
21
68
84
22
71
74
23
61
74
24
68
54
25
76
97...

2a. Describe the sample and population you are studying.
I am studying customers' satisfaction level with their
car insurance plan.
2b. Calculate the sample mean and sample standard deviation for
your variable. Keep at least four decimal places.
2c. Calculate the standard error and the margin of error for a 90%
confidence interval. Keep at least four decimal places.
Data:
36
18
66
43
28
39
47
40
24
46
48
57
36
58
39
62
43
65
74
36...

Using the accompanying Student Grades data, construct a scatter
chart for midterm versus final exam grades and add a linear
trendline. What is the model? If a student scores 7878 on the
midterm, what would you predict her grade on the final exam to
be?
Student
Midterm
Final Exam
1
75
64
2
85
91
3
80
68
4
88
83
5
76
60
6
67
80
7
78
74
8
95
94
9
67
61
10
93
87
11...

A statistics professor would like to build a model relating
student scores on the first test to the scores on the second test.
The test scores from a random sample of 21 students who have
previously taken the course are given in the table.
Test Scores
Student
First Test Grade
Second Test Grade
1
50
70
2
91
58
3
55
74
4
58
65
5
79
60
6
70
60
7
97
48
8
51
73
9
51
73...

Taste test for difference betwen fresh and frozen meat under
different drinking conditions for College students.
Description: Comparison of 6 experimental Drinking conditions
for 55 college students.
Variables
1. Condition (1 = Cold Water, 2 = Milk, 3 = Beer, 4 = Soda, 5 =
Lemoade, 6 = Powerade)
2. Fresh Meat taste Score (out of 150)*
3. Frozen Meat taste Score (out of 150)*
*Note: Higher scores indicate better performance
Taste Test Data
Description: Burger taste ranged from 0...

For each of the data sets provided below, calculate the mean,
median, mode, and standard deviation.
1) Data Set 1:
23, 26, 50, 39, 55, 64, 50, 10, 42, 35, 51, 42, 43, 56, 64, 48,
48, 57, 27, 37
2) Data Set 2:
26, 31, 10, 37, 38, 35, 30, 24, 26, 27, 24, 32, 32, 19, 34, 33,
14, 32, 24, 39, 30

The test scores of 40 students are listed below.
30
35 43 44 47 48 54 55 56 57
59
62 63 65 66 68 69 69
71 72
72
73 74 76 77 77 78 79 80 81
81 82 83 85 89
92 93 94 97
98
a)
Find the lower and upper quartiles for the data.
b)
Find the interquartile range.
c)
Draw the box-and-whisker diagram for the data.

The answers are provided. Please provide an
explanation/machanism to support the answers. Questions 1, 3, 13,
14, 19, 21, 25, 27, 30, 32, 33, 34, 37, 38, 39, 42, 43, 44, 45, 46,
47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 61, 62, 63 and 65.
(I know it's a lot, but please do as many as you are willing to.
Thank you! Here is the link to the document:
http://www.kau.edu.sa/Files/0008904/files/41686_g.pdf

The list contains 42 Test 3 scores from a section of MA 110.
35, 43, 44, 44, 45, 46, 48, 50, 53, 54, 54, 55, 56, 57, 62, 64,
65, 66, 67, 69, 75, 76, 77, 78, 78, 81, 83, 84, 85, 86, 86, 89, 89,
92, 93, 94, 97, 98, 100, 100, 100, 100
1. How do I divide the scores into four equal parts, and draw
three lines to show this ?
2. How do I calculate the...

This dataset contains consumer responses indicating the number
of times they had to send their product for repair and their
satisfaction with the repair process. Create a graph which can be
used to visually demonstrate the relationship between the two
columns of data. Ensure that the chart is professional with
appropriate titles, axis labels, etc. Note any observations you see
in your visualization (type these as sentences directly into an
Excel cell(s)).
Sample
Satisfaction Rating
Repair Requests
1
63%
13...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 2 minutes ago

asked 2 minutes ago

asked 2 minutes ago

asked 3 minutes ago

asked 3 minutes ago

asked 4 minutes ago

asked 4 minutes ago

asked 4 minutes ago

asked 5 minutes ago

asked 9 minutes ago

asked 9 minutes ago

asked 11 minutes ago