Find σ. (Enter an exact number as an integer, fraction, or decimal.)
X ~ N(5, 3)

And from this case we can see that the deviation is given by:

Step-by-step explanation:

For this case we have the following notation given:

And from this we know that the distribution for the random variable is normal and we know that in general the normal distribution is given by:

And from this case we can see that the deviation is given by:

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x