A group of students were timed in their efforts to complete an F1 concession task for a certain module. The times (in seconds) of 20 students are summarised in the following stem-and-leaf plot: Stem 4 5 6 8 Leaf Calculate 156789 0 1 24 5688 03357 4|1= 41 Figure 1: Stem-and-leaf plot 6 the variance (correct to three decimal places) the standard deviation the upper quartile the lower quartile the interquartile range ‒‒‒‒‒
A group of students were timed in their efforts to complete an F1 concession task for a certain module. The times (in seconds) of 20 students are summarised in the following stem-and-leaf plot: Stem 4 5 6 8 Leaf Calculate 156789 0 1 24 5688 03357 4|1= 41 Figure 1: Stem-and-leaf plot 6 the variance (correct to three decimal places) the standard deviation the upper quartile the lower quartile the interquartile range ‒‒‒‒‒
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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Step 1
Data from stem and leaf plot :
41,45,46,47,48,49,50,51,52,54,55,56,58,58,60,63,63,65,67,80
N=20
Variance= sum[(x- mean)²]/(N-1)
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