Determine whether the situation calls for a discrete or continuous random variable.

The number of freshmen in the required course, English 101

The braking time of a car

I think the first one discrete and the second is continous is this correct?

you are correct.

4/3x+2/3x

Yes, you are correct!

1. The number of freshmen in the required course, English 101, would typically be considered a discrete random variable. This is because the number of freshmen is usually quantized or counted in whole numbers. You can't have a fraction or a non-integer number of freshmen.

2. The braking time of a car would typically be considered a continuous random variable. This is because the braking time can take any non-negative value within a certain range. It could be measured in fractions of a second and can vary continuously, rather than being restricted to specific whole number values.

Yes, your answer is correct. The number of freshmen in the required course, English 101, is a discrete random variable because it can only take on whole number values (0, 1, 2, 3,...). The braking time of a car, on the other hand, is a continuous random variable because it can take on any value within a certain range (e.g., 2.5 seconds, 3.2 seconds, etc.)