No, that would be an invalid inference because he actually sampled from only half of the total population not the entire population.
so 12% of the 50% he sampled would be valid, but since he did not use the entire population, the results cannot affect all of them.<span />
Answer: option D. 0.785
Explanation:
1) the probability will be equal to the area of the shaded region divided by the area of the rectangle:
area of the shaded region
probability = -------------------------------------
area of the rectangle
2) call r the radius of the circles (all are equal)
area of one circle = π (r^2)
area of the four circles = 4π(r^2) = area of the shaded region
3) area of the rectangle
length of the rectangle: 2r
height of the rectangle: 8r
area of the rectgangle = (2r)(8r) = 16 r^2
4) probability = 4π(r^2) /[(16)(r^2)] = π / 4
use π = 3.1416
probability = 3.1416 / 4 = 0.785
And you do not need to use the diameter given. The answer does not depend on this number.
Answer:
Height, base(4,1) to A(4,3)
Step-by-step explanation:
The height that is shown is incorrect as it is showing the distance between A and B, which is not the height of the triangle, and simply a side. We need to find the altitude(height) which is a line perpendicular to the base. If we draw a line that is perpendicular to the base that intersects the highest point of the triangle, A, we get the point of intersection of that line and the base at (4,1)
15) Basically, this year Chelsea is making 64 cups of soup, and since there are 16 cups in a gallon, Chelsea will make 4 gallons.
16) Option D
Deb would have made $18 from selling 14 cups of lemonade. She earned $20 for selling 10 which is $2 per cup. Add $2 dollars for 4 more cups which makes $18