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densk [106]
3 years ago
10

In a random sample of 130 students, only 7 had been placed in the wrong math class. What is the best point estimate for the prop

ortion of all students who have been placed in the wrong math class?
Mathematics
1 answer:
Ivenika [448]3 years ago
5 0
We have the given  in the problem as mentioned:
A total of 130 students and only 7 had been placed in the wrong math class.
With this given, we can easily draw the proportion of all students who have been placed in the wrong math class by estimation method and the solution is shown below:

Proportion = 7/130
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Step-by-step explanation:

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F(x) = 3x + 5<br> Work out a if f(a)= -13
vekshin1

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Step-by-step explanation:

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Write a quadratic equation with the given roots. Write the equation in the form of ax^2+bx+c=0 where a b and c are integers
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You haven't provided the required roots, but I can tell you how to do this kind of exercises in general.

If the x^2 coefficient is 1, i.e. the equation is written like x^2+bx+c=0, then you can say the following about the coefficients b and c:

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So, for example, if we want an equation whose roots are 4 and -2, we have:

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So, the equation is x^2-2x-8=0

If your roots are rational, you can work like this: suppose you want an equation with roots 3/4 and 1/2. You have:

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