Ill give u branis ... lol no for real tho :)
2 answers:
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Answer:
Step-by-step explanation:
Here we can see that the parent function is and the translated function is g(x). f(x) is a parabola.
Rule says that any factor if multiplied by f(x) is going to contract the graph towards the y axis and vice versa.
Similarly any factor if f(x) is divided by some factor it is going to be stretch the graph away from the y axis and vice versa.
Here we can see that the translated graph g(x) is stretched away from the y axis with reference to the parent function f(x). Hence as per he rule discussed above, we get a preliminary information that the parent function f(x) is being divided by some factor.
now we are given that
Where as
{as given in the graph}
Hence
at x=3 , f(x) = 9 and g(x) = 1 , and also we have discussed above that f(x) is divided by some factor. Hence
Answer:
(a) Approximately 205 students scored between 540 and 660.
(b) Approximately 287 students scored between 480 and 720.
Step-by-step explanation:
A mound-shaped distribution is a normal distribution since the shape of a normal curve is mound-shaped.
Let <em>X</em> = test score of a student.
It is provided that .
(a)
The probability of scores between 540 and 660 as follows:
Use the standard normal table for the probabilities.
The number of students who scored between 540 and 660 is:
300 × 0.6826 = 204.78 ≈ 205
Thus, approximately 205 students scored between 540 and 660.
(b)
The probability of scores between 480 and 720 as follows:
Use the standard normal table for the probabilities.
The number of students who scored between 480 and 720 is:
300 × 0.9544 = 286.32 ≈ 287
Thus, approximately 287 students scored between 480 and 720.