Answer:
126
Step-by-step explanation:
Answer:
Teachers in his school district have less than 5 yearſ of experience on average is true.
Step-by-step explanation:
Sample mean =
Sample standard deviation = s = 2
We are supposed to to test Ha :u= 5 versus H : u < 5 using a sample of 25 teachers
n = 25
Since n<30 and population standard deviation is unknown
So, we will use t test
Formula :
t=-2.5
Degree of freedom = n-1 = 25-1 = 24
Refer the t table
t critical > t calculated
So, We are failed to reject null hypothesis
So, teachers in his school district have less than 5 yearſ of experience on average is true.
Answer:-3
got it right on edg
Step-by-step explanation:
This is not a function. In a function, each x value can only have one y value. In this example, the x value 5 has two different y values.
The area of a sector of a circle can be calculated by using this formula:
A=(n/360)*pi*r^2
where n is the measure of the central angle of the sector in degrees. Since we are already given with the measurement of the central angle, we can substitute this to the above formula:
A=(30/360)*pi*r^2
Taking the value of pi as 3.14, then
A=(1/12)*3.14*r^2
A=0.2617*r^2
Just plug in the value of r. and you will get the area of the sector. Hope this helps!