be . Run fast! As part of a student project, high school 9. 4 students were asked to sprint 50 yards and their times (in seconds) were recorded. A cumulative relative frequency graph of the sprint times is shown here. pg 94 100 80 40 20 01 5.8 6.3 6.8 7.3 7.8 8.3 8.8 9.3 9.8 10.3 Sprint time (sec) (a) One student ran the 50 yards in 8 seconds. Is a spri- time of 8 seconds unusually slow? (b) Estimate and interpret the 20th percentile of the distribution. lative relative Cumulative relative frequency (%) 60
be . Run fast! As part of a student project, high school 9. 4 students were asked to sprint 50 yards and their times (in seconds) were recorded. A cumulative relative frequency graph of the sprint times is shown here. pg 94 100 80 40 20 01 5.8 6.3 6.8 7.3 7.8 8.3 8.8 9.3 9.8 10.3 Sprint time (sec) (a) One student ran the 50 yards in 8 seconds. Is a spri- time of 8 seconds unusually slow? (b) Estimate and interpret the 20th percentile of the distribution. lative relative Cumulative relative frequency (%) 60
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
question 9 a and b please answer
thanks !
Transcribed Image Text:tile for height. Explain what these values mean in
plain English.
8.
Run fast Peter is a star runner on the track team. In the
league championship meet, Peter records a time that
would fall at the 80th percentile of all his race times
foreig
that season. But his performance places him at the 50th
percentile in the league championship meet. Explain
how this is possible. (Remember that shorter times are
better in this case!)
Run fast! As part of a student project, high school
9.
times (in seconds) were recorded. A cumulative
relative frequency graph of the sprint times is
shown here.
100
80
60 -
40
20
01
5.8 6.3 6.8 7.3 7.8 8.3 8.8 9.3 9.8 10.3
Sprint time (sec)
(a) One student ran the 50 yards in 8 seconds. Is a sprint
time of 8 seconds unusually slow?
(b) Estimate and interpret the 20th percentile of the
distribution.
The cumulative relative
Cumulative relative frequency (%)
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