+0  
 
+1
56
1
avatar+374 

solve histogram

qualitystreet  Sep 12, 2018
 #1
avatar+90968 
+1

We can do this by working out the areas of the rectangles  = base * height

Rectangle   6 -10 .....base  = 4  and height  = 3....area  =  12

Rectangle 10-12  ....base  = 2  and height  = 8....area  =  16

Rectangle 12 - 14  ....base  = 2    and height  = 11.....area  = 22

Rectangle 14 -15......base  = 1 and height = 23...area  = 23

Rectangle 15 - 16 .....base  = 1  and height  = 19  ....area  = 19

Rectangle 16 - 20...base  = 4  and height  = 2....area  = 8

 

Number  of mice  below 10g  =

 

[ Area  of rectangle 6-10] / [ Area of all rectangles]  * 1000  =

 

[ 8 ] / [ 12 + 16 + 22 + 23 + 19 + 8 ]  * 1000  =

 

[ 8 ]  / [100] * 1000   =     8000 / 100  =    80  mice

 

 

 

cool cool cool

CPhill  Sep 12, 2018

37 Online Users

avatar
avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.