What is the lowest value of the range of the function shown on the graph! Please help asap
1 answer:
The range of a function is the set of the all values taken by the function, for all possible inputs.
When you watch this from a graphical point of view, the range is the portion of the y axis that the graph spans.
In this case, you can see that the lowest point reached by the function (its minimum) is . You can also see that the function is unbounded upwards.
So, the range is , and the lowest value is thus 2.
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Answer: The running time should at least 119.32 seconds to be in the top 5% of runners.
Step-by-step explanation:
Let X= random variable that represents the running time of men between 18 and 30 years of age.
As per given, X is normally distrusted with mean and standard deviation
.
To find: x in top 5% i.e. we need to find x such that P(X<x)=95% or 0.95.
i.e.
Since, z-value for 0.95 p-value ( one-tailed) =1.645
So,
Hence, the running time should at least 119.32 seconds to be in the top 5% of runners.
I'm thinking this is the anwer if im right
