The answer to the question
Answer:
The z-score corresponding to an observed value of x of 2 is 0.215.
Step-by-step explanation:
We are given that a variable x has the possible observations shown below;
Possible observations of X: -3, -1, 0, 1, 1, 2, 4, 4, 5.
Firstly, we will find the mean and the standard deviation of X, i.e;
Mean of X, (
) =
=
=
= 1.44
Standard deviation of X, (
) =
=
= 2.603
Now, the z-score corresponding to an observed value of x of 2 is given by;
z-score =
=
= <u>0.215.</u>
÷

= 7, but Im not 100% sure if thats right. You should pick someone else's answer.
Step-by-step explanation:
PART A
a=total amount
c=cans of oil
g=gasoline
a=2.65g+3.45c
PART B
a=2.85(8.4)+3.15(6)
a=23.94+18.90
a=42.84
Hope that helped =)
Answer: Discount Price/Amount = $154.56
Step-by-step explanation:
STEP 1
A Discount Is used when a seller gives a reduction in the price of its good or services. .
Given that sale of car = $1,287.99
Discount = 12%
Discount Price = 12 % x $1,287.99=$154.56
such that The Final price to purchase the car =$1,287.99 - $154.56 =$1,133.43