Aresearcher finds that 15% of all commuters in a metropolitan area take the train to work. the researcher polls 250 people in the area and asks them whether they take the train to work. what is the number of trials for this binomial experiment? a. 15 b. 38 c. 250 d. 265

 Option 'B' is correct.

Step-by-step explanation:

Since we have given that

Number of people in the area = 250

Percentage of commuters in a metropolitan = 15%

So, Number of trials would be

Hence, there are 38 trials for this binomial experiment.

Thus, Option 'B' is correct.

This type of transformation can also be found in the associations of sets, in the calculation of square roots and in the calculation with different units of measurement and the Geometric Transformation.

Step-by-step explanation:

A Geometric Transformation, also known as Transformation in the Plane or Movement in the Plane, is a function that corresponds to each point on the plane, another point on the same plane called Image. In general, a Transformation is a geometric operation that allows finding or building a new figure from one that was initially given. The new figure is called homologous or transformed from the original.

When we work on Geometric Transformations, it is important to take into account the notation to use; then if A is a point on the α plane, to which a transformation T is applied, then A´, which also belongs to the α plane, is its counterpart or transformed if there is such an application that converts A to A´. We will notice this as well

  T (A) = A´

and it reads “the homologue of A by application of the transformation T is A´.”