The standard deviation of a set of 5 different integers each of which is between 0 and 10

Mean = 3.8, std dev = 3.06

Step-by-step explanation:

First let us select any 5 integers without repitition from 0 to 10

Let this be 0,2,3,5,9

To calculate mean and standard deviation

x(x-3.8)^2  

014.44  

23.24  

30.64  

51.44  

927.04  

total1946.8  

Mean3.89.36Variance

Variance9.36  

Std dev3.059411708  

Please note that this mean and std deviation would vary according to our selection of 5 integers.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

justin bieber ml.