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JoannaBlackwelder
 one year ago
Can anyone tell me how to do part e without calculus? Thanks!
A test is given to a large group of students. The results are given by the function f(x) = 4e^(−(x−5)^2) +3e^(−2(x−8)^2)
where x is the score in tens (e.g., x =5.6 represents 56%) and f is in hundreds of students. f has
domain 0 <x< 10.
(a) How many students received a 73%?
(b) What range of scores had more than 250 students receiving that score?
(c) What is the most common score?
(d) Find all local maxima and minima of this function.
(e) How many students took this test?
JoannaBlackwelder
 one year ago
Can anyone tell me how to do part e without calculus? Thanks! A test is given to a large group of students. The results are given by the function f(x) = 4e^(−(x−5)^2) +3e^(−2(x−8)^2) where x is the score in tens (e.g., x =5.6 represents 56%) and f is in hundreds of students. f has domain 0 <x< 10. (a) How many students received a 73%? (b) What range of scores had more than 250 students receiving that score? (c) What is the most common score? (d) Find all local maxima and minima of this function. (e) How many students took this test?

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JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.0@phi @IrishBoy123

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.0I did that already.

ytrewqmiswi
 one year ago
Best ResponseYou've already chosen the best response.0so u want another better method

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.0That doesn't give the the total number of students.

Hero
 one year ago
Best ResponseYou've already chosen the best response.0Use a TI Inspire CaIc to do it.

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.0I don't have one. But what function do you use on it?

dumbcow
 one year ago
Best ResponseYou've already chosen the best response.2estimate using midpoint rule use xvalues of .5,1.5,2.5 ... 9.5 sum up resulting "f" values this will approximate the area under the curve which represents total num of students

JoannaBlackwelder
 one year ago
Best ResponseYou've already chosen the best response.0That's true, thanks. :)

Hero
 one year ago
Best ResponseYou've already chosen the best response.0You have to graph it first, then Use the "sum" feature under Calculus
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