mathmath333
  • mathmath333
What the does this statement means
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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mathmath333
  • mathmath333
\(\large \color{black}{\begin{align} & \normalsize \text{ If there are three things to do.}\ \hspace{.33em}\\~\\ & \normalsize \text{ M ways of doing first thing.} \hspace{.33em}\\~\\ & \normalsize \text{ N ways of doing second thing.}\ \hspace{.33em}\\~\\ & \normalsize \text{ P ways of doing third thing.}\ \hspace{.33em}\\~\\ & \normalsize \text{When the pieces of work are mutually exclusive ,there are }\hspace{.33em}\\~\\ & M+N+P\ \normalsize \text{ways of doing the complete work. }\hspace{.33em}\\~\\ \end{align}}\)
ganeshie8
  • ganeshie8
suppose you have M blue shirts, N white shirts P black shirts
mathmath333
  • mathmath333
ok

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More answers

ganeshie8
  • ganeshie8
how many ways can you go out to a movie with your girlfriend ?
mathmath333
  • mathmath333
3 ways
mathmath333
  • mathmath333
*i m a monk by the way
ganeshie8
  • ganeshie8
Ahh wait, lets also assume that all shirts are different
ganeshie8
  • ganeshie8
the M blue shirts are different they are not uniforms, your girlfriend can tell the difference..
mathmath333
  • mathmath333
ok like M blue shirts of different sizes ?
ganeshie8
  • ganeshie8
yes, different size/shades etc... consider they are different
mathmath333
  • mathmath333
m*n*p
ganeshie8
  • ganeshie8
nope, let me ask u a q how many total shirts do you have ?
mathmath333
  • mathmath333
m*blue+n*white+p*black
ganeshie8
  • ganeshie8
right, so you can pick any "one shirt" from the available "m+n+p" shirts
ganeshie8
  • ganeshie8
you just have "m+n+p" choices because you can't wear more than one shirt at the same time
ganeshie8
  • ganeshie8
lets do another example maybe
mathmath333
  • mathmath333
what is mutually exclusive
ganeshie8
  • ganeshie8
"mutually exclusive" is same as "any two things cannot happen at the same time"
mathmath333
  • mathmath333
ok
ganeshie8
  • ganeshie8
read this quick and let me know once ur done https://www.mathsisfun.com/data/probability-events-mutually-exclusive.html
mathmath333
  • mathmath333
okk done
ganeshie8
  • ganeshie8
you went to a restaurant for breakfast and saw the menu
ganeshie8
  • ganeshie8
it shows : 3 different types of north indian items 5 different types of south indian items how many choices do you have for ordering "one" item for breakfast ?
mathmath333
  • mathmath333
8
ganeshie8
  • ganeshie8
Correct. so you can see the difference, when to multiply and when to add
ganeshie8
  • ganeshie8
lets do one more example
ganeshie8
  • ganeshie8
you also have coffee/tea during breakfast so, here comes the question :
ganeshie8
  • ganeshie8
you went to a restaurant for breakfast and saw the menu : breakfast items : 3 different types of north indian items 5 different types of south indian items hot drinks : 6 different types for coffee 2 different types for tea you want to order "one" breakfast item and "one" hot drink, how many ways can you order them ?
mathmath333
  • mathmath333
64 ?
ganeshie8
  • ganeshie8
how ?
ganeshie8
  • ganeshie8
64 is correct, just see if u can explain how
mathmath333
  • mathmath333
3*6+3*2+5*6+5*2=64
ganeshie8
  • ganeshie8
that is one way
ganeshie8
  • ganeshie8
``` breakfast items : 3 different types of north indian items 5 different types of south indian items hot drinks : 6 different types for coffee 2 different types for tea ```
ganeshie8
  • ganeshie8
total choices for breakfast = 3+5 = 8 total choices for hot drinks = 6+2 = 8 since for each breakfast item that you pick, there are again 8 more choices for hot drink, the total number of ways that you can have breakfast AND hot drink is 8*8 = 64
mathmath333
  • mathmath333
ok

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