The ages of students in a ballroom dancing class are given in the following stem

Question

The ages of students in a ballroom dancing class are given in the following stem and leaf plot. (stem = tens digit, leaf = ones digit)

Pottery            Ballroom dancing

                1                     6899

                2                     0128899

                3                     13559

                4                     37

                5                     01335

                6                      35

Answer the following parts based on the ball-room dancing class data:

a)     65% of the students are older than what age in this class? _______________

Explanation / Answer

total number od students =number of leaves =25

hence 35 % rest of the students =0.35*25 =8.75 th value which is 28

as 35 percentile lies at 28 years

hence 65 percent of the students are older than 28 years

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

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