Answer:
The mean shall be 10.67 and the standard deviation shall be 6.09
Step-by-step explanation:
There are calculators online that can help u with problems like these :)
Answer:
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Step-by-step explanation:
The formula for finding the area of a circle is;
Where () represents the area of the circle, () represents the value () and () represents the radius of the circle. As per its definition, the diameter is the largest cord or line segment that can be drawn through a circle, the diameter always passes through the center of a circle. The radius ( a line segment that can be drawn from the center of the circle to any side of the circle) is always half of the diameter.
This means that the radius for the given circle is (), since (÷)
Substitute these values into the equation and solve for the area of the circle.
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Let ones digit = z
Let tens digit = y
Let hundreds digit = x
Then three digit number xyz will be equivalent to (100x+10y+z)
If we reverse the digits then new number zyx will be equivalent to (100z+10y+x)
2(100x+10y+z)=(100z+10y+x)+1
200x+20y+2z=100z+10y+x+1
199x+10y-98z-1=0
There are no more conditions given so that we can use them to minimize calculation in order to find the answer.
So now we have only choice to plug random numbers for x,y,z which can vary from 0 to 9.
Working as explained above gives x=3, y=9, z=7 is satisfying the above equation.
Hence required number is 397.