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Tanzania [10]
3 years ago
10

What are all the key features of parabola

Mathematics
1 answer:
aev [14]3 years ago
3 0

Answer:

A parabola has a vertex. The vertex is the point of a parabola where it changes direction. It also has an axis of symmetry which is an imaginary line that cuts it in two equal parts. A parabola may have x-intercepts ("zeros") which are points where the graph cross the x-axis. It may have x-intercepts which are points where the graph cross the x-axis.

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In the largest clinical trial ever​ conducted, 401,974 children were randomly assigned to two groups. The treatment group consis
BARSIC [14]

Answer:

The requirements for the hypothesis test does satisfied the method for testing the claim that from two population proportions the rate of polio is less for children given the salk vaccine.

Step-by-step explanation:

The percentage of children in the treatment group was:

(201229/401974)*100 = 49.9%

The percentage of children given placebo was:

(200745/401974)*100 = 50.1%

The percentage of children that developed polio in the treatment group:

(33/200745)*100 = 0.0164%

The percentage of children that developed polio in the placebo group:

(115/201229)*100 = 0.0571%

The percentage difference between the two group:

((0.0571-0.0164)/0.0571) = 61.62%

Therefore:

The amount of children used for each group was almost divided into half of the total amount of children. The test revealed although very small percentages of the both group developed polio, 68.62% more children given placebo than the children that was given the salk vaccine. Therefore, the study shows that the rate of polio is less for children given the salk vaccine and the the hypthesis test is satisfied.

6 0
3 years ago
If the point A is translated 5 units up and 10 units to the left, find the location of the resulting point A' ?
jok3333 [9.3K]
Do your research and learn something
7 0
3 years ago
Two numbers grouped together like (7, 2) are called ______.
kogti [31]
It would an ordered pair
7 0
3 years ago
Jaden buys a raffle ticket. Each ticket has a 1% chance of being drawn. How likely is it that Jaden's ticket will be drawn? It d
Reika [66]
When Jaden bought the raffle ticket, he has a 1% chance of winning, which means that even if the chance is small, it's still there. 

Your answer would be

It likely won't be drawn. 
3 0
3 years ago
The high school is hosting an event for seniors but will also allow some juniors to attend. The principal approved the event for
Flura [38]

Answer:

50

Step-by-step explanation:

The total is 200 and 25% are juniors so u multiply 200 by 25%

Hope this helps

Correct me if this is wrong

8 0
3 years ago
Read 2 more answers
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