Answer:
1/6
Step-by-step explanation:
The x-coordinate of the vertex is always the x-value of the axis of symmetry. The vertex can be found by 
. If we look at this equation as 
,
and 
.
When you plug those values into the x equation you get 
.
Answer:
Step-by-step explanation:
given that the following data represent the discrete probability distribution for the number of stars that reviewers have a first edition statistics reference book.
Stars 5 4 3 2 1
Probability 25% 35% 20% 10% 10%
H0: Second edition is as per the above probabilities
Ha: atleast one is different from the above probability
(two tailed chi square test)
Alpha = 0.025
Assuming H0 to be true we calculate expected frequencies for total 80
chi square calculatons are shown below
df = 4
5 4 3 2 1 Total
Observed 28 28 13 6 5 80
Expected 20 28 16 8 8 80
chi square
(O_E)^2/E 3.2 0 0.5625 0.5 1.125 5.3875
p value =0.1455
Since p value >0.025, we accept H0
The expected requency of three-star reviews is ________.16
Answer:
I believe it is B
Step-by-step explanation:
Im not good at explaing, but if you move forward three units and up 6, then draw a point, then go forward to 5 units and down to one unit and connect those dots, the line would be going down to the right
Answer:
BCE and CED (first and last options on the list)
Step-by-step explanation:
Recall that an inscribed angle, by definition has to have its points sitting on the circumference of the circle.
Therefore, from the angles shown, those that contain the point "G" (which is NOT on the circle's circumference) will not be inscribed angles.
Those which are inscribed angles from the list are:
BCE and CED (first and last options on the list)
Answer: First box=3, second box=4, third box=0, last box=2
Step-by-step explanation: Do the math for the boxes.
