Perimeter of a triangle = sum of measures of each side ;
The answer is c bkuz it’s right
Adult tickets are $8 and child tickets are $4
Answer:
Option "D" is the correct answer to the following question.
Step-by-step explanation:
Given:
Return on U.S.Treasury bills = 4%
Potential return on stock investment = 10%
Find:
Additional risk of investing in the stock (Risk premium) = ?
Computation:
⇒ Additional risk of investing in the stock (Risk premium) = Potential return on stock investment - Return on U.S.Treasury bills
⇒ Additional risk of investing in the stock (Risk premium) = 10% - 4%
⇒ Additional risk of investing in the stock (Risk premium) = 6%
Answer:
a)= 2
b) 6.324
c) P= 0.1217
Step-by-step explanation:
a) The mean of the sampling distribution of X`1- X`2 denoted by ux`-x` = u1-u2 is equal to the difference between population means i.e = 2 ( given in the question)
b) The standard deviation of the sampling distribution of X`1- X`2 ( standard error of X`1- X`2) denoted by σ_X`1- X`2 is given by
σ_X`1- X`2 = √σ²/n1 +σ²/n2
Var ( X`1- X`2) = Var X`1 + Var X`2 = σ²/n1 +σ²/n2
so
σ_X`1- X`2 =√20 +20 = 6.324
if the populations are normal the sampling distribution X`1- X`2 , regardless of sample sizes , will be normal with mean u1-u2 and variance σ²/n1 +σ²/n2.
Where as Z is normally distributed with mean zero and unit variance.
If we take X`1- X`2= 0 and u1-u2= 2 and standard deviation of the sampling distribution = 6.324 then
Z= 0-2/ 6.342= -0.31625
P(-0.31625<z<0)= 0.1217
The probability would be 0.1217
