Answer:
C. 8 units to the left of 4
Step-by-step explanation:
We are asked to find the the position of located on a horizontal number line.
We know that negative numbers are located on the left side side of number line and positive numbers are located on the right side of number line.
4 will be located to the 4 units right from zero and negative 8 will be located 8 units left from 8.
Therefore, option C is the correct choice.
Answer:
e. 0.0072
Step-by-step explanation:
We are given that a bottling company uses a filling machine to fill plastic bottles with cola. And the contents vary according to a Normal distribution with Mean, μ = 298 ml and Standard deviation, σ = 3 ml .
Let Z = ~ N(0,1) where, Xbar = mean contents of six randomly
selected bottles
n = sample size i.e. 6
So, Probability that the mean contents of six randomly selected bottles is less than 295 ml is given by, P(Xbar < 295)
P(Xbar < 295) = P( <
) = P(Z < -2.45) = P(Z > 2.45)
Now, using z% score table we find that P(Z > 2.45) = 0.00715 ≈ 0.0072 .
Therefore, option e is correct .
Answer:
P = $900
Step-by-step explanation:
Simple Interest Formula:
Where A is the final amount,
P = Principal
r = Interest Rate in Percent or per annum
t = time in years
From the information given in the question,
A = $918
r = 2% per annum or
t = 1 year
Lets substitute these values to find P, the principal.
Therefore, P = $900