We have asked some students, how many subjects they take this semester, and got

Question

We have asked some students, how many subjects they take this semester, and got the following ansers: 1, 6, 7, 3, 8, 5, 4, 3, 2, 1, 6, 8, 7, 4, 5, 7, 5, 8, 4, 3, 5. Determine the frequency table. Read the % of the students having at most 5 classes, more than 6 classes and exactly 7 classes and. number or hours people normally sleep: 6.5, 3.4, 8.5, 4.2, 5.9, 6.4, 7.6, 9.2, 10.1, 5.5, 6.4, 8.3, 7.4, 7.6, 5.2, 4.3, 6.4, 3.6. Determine the frequency table of the scores, using classes of 0-4 hours, 4-6, 6-8, 8+ hours.

Explanation / Answer

Answer)

We can construct a discrete frequency table as shown below:

The percentage of students having atmost 5 classes = P(X <-5)= 9.52+4.76+14.29+14.29+19.05 = 61.91%

The percentage of students having more than 6 classes = P( X > 6) = 14.29+14.29 = 28.58%

The percentage of students having exactly 7 classes = P(X = 7) = 14.29%

The frequency table for number of hours people normally sleep is given as follows

                                                                                     

                                                                                   

Subjects Taken Frequency Relative Frequency Percentage Relative Frequency(%) 1 2 0.0952 9.52 2 1 0.0476 4.76 3 3 0.1429 14.29 4 3 0.1429 14.29 5 4 0.1905 19.05 6 2 0.0952 9.52 7 3 0.1429 14.29 8 3 0.1429 14.29 Total 21 1 100

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.