Option 2
because x(x)=x^2 and x(-5)=-5x which means you get x^2-5x
It is 10 u add five is like multiplying. 5+5 10
Is equivalent to 5x2
Answer:
And we can find this probability with this difference and using the normal standard distribution
Step-by-step explanation:
Let X the random variable that represent the amount of Jen monthly phone of a population, and for this case we know the distribution for X is given by:
Where and
We are interested on this probability
And we can use the z score formula given by:
Replacing the info we got:
And we can find this probability with this difference and using the normal standard distribution
Step-by-step explanation:
step 1. m + 7.02 = 6.32
step 2. m = -0.70. (subtract 7.02 from each side)