MATH HOMEWORK HELP

MATH HOMEWORK HELP

Exercise 1.There were 850 students in the schoolofbusiness administrationin a university. The schooloffers fourmajors,namely: Accounting,Finance,Management and Marketing.The following table shows the numberofstudentsenrolled in each major:

Major	Number of Students
Accounting	320
Finance	160
Management	280
Marketing	90
TOTAL

(1.) Develop a relative frequency distribution

(2.) Develop a percentagefrequency distribution

(3.) Construct a Linegraphforthenumberofstudentsenrolled foreach major.

Exercise 2. The following stem and leaf plot shows the scores on a recent examination of students in College Algebra.Write the answers in the spaces provided.

STEM	LEAF
5	6 8
6	1 2 2 4 8
7	0 4 6 6
8	0 4 4 6 6 6 6 6
9	0 2 6
10	0

2.a. How many students took the test?

2.a. _________________________________

2.b. What were the highest and lowest scores?

2.b.__________________________________

2.c. How many students scored 60 or higher?

2.c. __________________________________

Exercise 3. Show all solutions/process of your work. Write the answers in the spaces provided.

67	76	74	71	78	80
78	80	82	67	88	72
80	85	76	84	82	83
89	72	82	77	79	86
77	69	70	82	86	78

The scores of a sample of 30 students in Calculus

are shown in the table.

Construct a dot plot for the data.

| | | | | | | | | | | | | | | | | | | | | | |

Exercise 4. The revenues of the top eleven personal computer manufacturers are given (in hundred millions).

15	17	23	26	27	35
72	88	91	98	102

3.a. Compute the first quartile.

3.a. Q_{1_____________________________________________}

3.b. Compute the third quartile.

3.b. Q3_{_____________________________________________}

3.d Compute the median

3.c. M_{_____________________________________________}

Exercise 5.The profile of graduates from the College of Business in terms of their major fields are in the table below. Construct a relative and percent frequency distributions in the columns provided and answer the questions that follow in the next page.

Major	Frequency	Relative Frequency	Percent Frequency
Accounting	85
Administration	80
Finance	50
Computer Science	45
Marketing	40
Total	300

Based on the above table, answer the following questions:

(1) What is the percentage of graduates whose major is Computer Science? ________

(2) What is the percentage of graduates whose major is Administration? ________

(3) What is the percentage of graduates whose major is Accounting? ________

(4) What is the percentage of graduates whose majors are Finance and Accounting? ________

(5) Which has the lowest percentage of graduates among the different majors? __________________

Exercise 6.Read the data below showing the annual salaries of the Quality Control managers in selected universities. Solve to provide answers to questions 6.1, 6.2 and6.3:Show computation.

$65,000 $44,000 $48,000 $50,000

$49,000 $55,000 $52,000 $70,000

$55,000 $40,000 $49,000 $65,000

$65,000 $65,000 $65,000 $50,000

6.1) What is the MODE of the annual salaries ____________________?

6.2) The RANGE of the annual salaries is____________________?

6.3) The MEAN of the annual salaries is____________________?

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67	76	74	71	78	80
78	80	82	67	88	72
80	85	76	84	82	83
89	72	82	77	79	86
77	69	70	82	86	78

67	76	74	71	78	80
78	80	82	67	88	72
80	85	76	84	82	83
89	72	82	77	79	86
77	69	70	82	86	78

67	76	74	71	78	80
78	80	82	67	88	72
80	85	76	84	82	83
89	72	82	77	79	86
77	69	70	82	86	78