Question
In: Statistics and Probability
The marks obtained by 30 students in the examination are given below: 22, 9, 23, 19,...
- The marks obtained by 30 students in the examination are given below:
22, 9, 23, 19, 11, 14, 15, 13, 18, 12, 10, 22, 13, 5, 17, 10, 11, 16, 21, 9, 6, 10, 9, 14, 15, 13, 5, 19, 17, 24
- Construct a frequency distribution for this data set.
- Use your frequency distribution to draw a histogram. Label correctly.
- Find the quartiles and construct the boxplot
- Then construct a stemplot
Please show work I am practicing
Solutions
orchestra answered 1 year agoRelated Solutions
Ages Number of students 15-18 5 19-22 6 23-26 3 27-30 9 31-34 9 35-38 6...
Ages
Number of students
15-18
5
19-22
6
23-26
3
27-30
9
31-34
9
35-38
6
Find the relative frequency for the class with lower class limit
19
Relative Frequency = %
Give your answer as a percent, rounded to two decimal places
A Frequency Distribution Table using data
This list of 16 random numbers has been sorted:
22
29
34
34
35
40
43
50
50
50
51
53
54
55
56
56
Fill in this table with the...
Ages Number of students 15-18 6 19-22 7 23-26 9 27-30 6 31-34 8 35-38 8...
Ages
Number of students
15-18
6
19-22
7
23-26
9
27-30
6
31-34
8
35-38
8
Find the relative frequency for the class with lower class limit
15
Relative Frequency = %
Give your answer as a percent, rounded to two decimal places
the mean final examination scores for students taking SM2703 is 30 marks (out f 50 marks)...
the mean final examination scores for students taking SM2703 is
30 marks (out f 50 marks) with standard deviation of 6 marks.
Assume that the final scores are approximately normal. Two random
samples were taken randomly consisting of 32 and 50 students
respectively. What is the probability that: a) The mean final
examination scores will differ by more than 3 marks? b) Mean final
examination scores from group 1 is larger than group 2? vv
3) Using a calculator, the space below, and the following dataset: 22 19 23 26 18...
3) Using a calculator, the space below, and the following
dataset: 22 19 23 26 18 22 21 31
(10 points)
A. Compute the sample mean.
B. Compute the sample standard deviation.
C. Compute the sample standard error of the mean.
D. Compute the t-statistic. (Use a known population
mean of 28)
E. What is tcrit? (Use a two-tailed test with =
0.05)
F. What are the Ho and Ha?
G. What...
QUESTION ONE The data below represent statistics and probability end of semester examination marks of 30...
QUESTION ONE
The data below represent statistics and probability end of semester
examination marks of 30
students randomly selected from the population of students who
registered for probability and
statistics during 2018/2019 academic year.
16 51 36 45 23 48
37 19 28 28 25 36
76 22 27 18 28 42
38 47 44 29 37 42
27 33 35 46 28 27
Using sturge’s approximation rule with all your answers in one
decimal place,
construct a frequency distribution...
A class of 40 students, 18 are males and 22 are females. For the final examination,...
A class of 40 students, 18 are males and 22 are females.
For the final examination, 3 males and 5 females achieved a letter
grade of A. What is the probability that a randomly selected
student from the class achieved letter A grade or is a female
student?
Select one:
a. 27/40
b. 25/40
c. 13/30
d. 30/40
e. 22/40
Suppose it is known that 11% of Canadian are left
handed. In a random sample of 500 Canadian, what is...
Record No. Length-mm 1 22 2 30 3 23 4 22 5 26 6 23 7...
Record No.
Length-mm
1
22
2
30
3
23
4
22
5
26
6
23
7
27
8
18
9
39
10
31
11
36
12
23
13
31
14
23
15
32
16
35
17
24
18
23
19
24
20
43
21
30
22
31
23
34
24
21
25
25
26
37
27
26
28
35
29
28
30
36
1. suppose you the fisher men want to use mosquito fish that are
greater than 29 mm...
Record No. Length-mm 1 22 2 30 3 23 4 22 5 26 6 23 7...
Record No.
Length-mm
1
22
2
30
3
23
4
22
5
26
6
23
7
27
8
18
9
39
10
31
11
36
12
23
13
31
14
23
15
32
16
35
17
24
18
23
19
24
20
43
21
30
22
31
23
34
24
21
25
25
26
37
27
26
28
35
29
28
30
36
1. suppose you the fisher men want to use mosquito fish that are
greater than 29 mm...
Question 2 Raw data: 19 14 25 17 29 24 36 23 9 26 22 31...
Question 2
Raw data: 19 14 25 17 29 24 36 23 9 26 22 31 19 28
8
2.1 Group the data into a frequency distribution with
a lowest class lower limit of 8 and class width of 7, then draw an
ogive curve and use it to estimate the mean
Below you are given the examination scores of 20 students. 52 99 92 86 84 63...
Below you are given the examination scores of 20
students.
52
99
92
86
84
63
72
76
95
88
92
58
65
79
80
90
75
74
56
99
a).
How many classes would you recommend?
b).
What class interval would you suggest?
c).
Develop a relative frequency distribution
d).
Develop a cumulative frequency distribution
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