Answer:
Step-by-step explanation:
Hello!
The variable of study is X: Temperature measured by a thermometer (ºC)
This variable has a distribution approximately normal with mean μ= 0ºC and standard deviation σ= 1.00ºC
To determine the value of X that separates the bottom 4% of the distribution from the top 96% you have to work using the standard normal distribution:
P(X≤x)= 0.04 ⇒ P(Z≤z)=0.04
First you have to use the Z tables to determine the value of Z that accumulates 0.04 of probability. It is the "bottom" 0.04, this means that the value will be in the left tail of the distribution and will be a negative value.
z= -1.75
Now using the formula of the distribution and the parameters of X you have to transform the Z-value into a value of X
z= (X-μ)/σ
z*σ = X-μ
(z*σ)+μ = X
X= (-1.75-0)/1= -1.75ºC
The value that separates the bottom 4% is -1.75ºC
I hope this helps!
Answer:
stop talking with other person and doing your work
Step-by-step explanation:
Answer:
Answer:-1/2
Step-by-step explanation:
-3/7 x 1-1/14
Multiply first
-3/7-1/14
Step-by-step explanation:
Answer:
yes
Step-by-step explanation:
Each x-value is only listed once, so the relation <em>is a function</em>.
__
A function maps each x-value to only one y-value. If an x-value is listed more than once (with different y-values), then the relation is not a function.