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S1 and S2 DOUBTS HERE!!!!

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astarmathsandphysics:
Hello  Smiley im taking cie s1 and wondering if u know the way to find standard deviation on calculator , i use casio fx-991es and cant find any help on web  Undecided

From memory
Shift mode stat

choose 1 or 2  variable
input data
Choose shift 4
var
Then choose sigma_n or sigma_{n-1}

astarmathsandphysics:
A coin is tossed 10 times
(a) How many different sequences of heads and tails are possible.
(b) How many different sequences containing six heads and four tails are possibles.
(c) What is the probability of getting six heads and four tails.
a)2^10 =1024
b)10C4 or 10C4
c)10C4/2^10

Saavya:

--- Quote from: astarmathsandphysics on February 16, 2011, 09:12:03 am ---From memory
Shift mode stat

choose 1 or 2  variable
input data
Choose shift 4
var
Then choose sigma_n or sigma_{n-1}

--- End quote ---

Thank You !  :D

EMO123:

--- Quote from: astarmathsandphysics on February 16, 2011, 09:15:07 am ---A coin is tossed 10 times
(a) How many different sequences of heads and tails are possible.
(b) How many different sequences containing six heads and four tails are possibles.
(c) What is the probability of getting six heads and four tails.
a)2^10 =1024
b)10C4 or 10C4
c)10C4/2^10

--- End quote ---
thanxx

Saavya:
can we solve basic binomial distribution questions on calculator ?! if yes then how ??

 

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