Just do A Name Student Number 9. (3 markas),. A detailed study of a collection o
ID: 2922596 • Letter: J
Question
Just do A Name Student Number 9. (3 markas),. A detailed study of a collection of glaciers indicates a population men speed of 1.2 metre/day with a standard deviation of 0.1 metre/day There aze a ollection of Excel commands below. You may use any or all of them as appropriate to justify your answers to the following questions NORM.DIST(1.15,1.2,0.1,1)-0.31 ORM.DIST(1.45,1.2,0.1,1)-0.99 ORM.INV C0.25,1.2,0.1) 1.13 NORM.INV C0.50,1.2,0.1)-1.20 (a) What proportion of glaciers do you expect move slower than 1.15 metzres/day? (b) What proportion of glaciers do you expect to move faster than 1.45 mtr/day? (c) What is the interquartile range of glacier speeds? 8 of 8
Explanation / Answer
a) Proportion of galders slower than 1.15 meters/ day
= P(X < 1.15)
= norm.dist(1.15, 1.2,0.1,1)
= 0.31
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