Answer:
mean=sum of all observations/no.of observations
mean =23+15+6+5+6/5
mean=55/5
mean=11
population mean =11
hope this answer helps
#11 and #12 have no solutions, #13 has a solution which is 14
Answer:
y = (-1/2)x + 9/2
Step-by-step explanation:
the equation of a straight line can be written as;
y = mx + c ......1
Where;
m = slope
c = intercept
For two lines to be perpendicular their slope must be opposite reciprocal of each other.
m1 × m2 = -1 .....2
Given;
The equation Contains (3, 3); and perpendicular to the line y = 2x - 1
Slope of the given equation m1 = 2
Slope of the line m2; substituting m1 to equation 2.
2 × m2 = -1
m2 = -1/2
So,
y = (-1/2)x + c
To solve for c, let's substitute the given point on the line; (3,3).
3 = (-1/2)(3) + c
3 = -3/2 + c
c = 3 + 3/2
c = 9/2
Therefore, the equation of the line that has the given properties is;
y = (-1/2)x + 9/2
7j + 17 = 87
Subtract 17 from both sides.
7j = 70
Divide both sides by 7.
j = 10
<h3>The value of the unknown number, or j, is equal to 10.</h3>
