Question

In this question, you will practice working with vectors, matrices, and dataframes. Create a vector x of 20 integers randomly drawn from all integers between 1 and 10.

Options:
A) 20
B) Random integers between 1 and 10
C) 10
D) 1

Answer 1

The values that the random variable may take on are integers between 1 and 10. The distribution for X is a uniform distribution. To find the probability of a range of questions being posted, calculate the cumulative probability from the uniform distribution.

Step-by-step explanation:

The values that the random variable may take on are integers between 1 and 10. In this case, it is a vector x of 20 integers randomly drawn from all the integers between 1 and 10.

The distribution for X is a uniform distribution because each value from 1 to 10 has an equal chance of being selected.

The probability of having from 10 to 14-inclusive questions posted to the listserv on a randomly picked day can be found by calculating the cumulative probability of selecting 10, 11, 12, 13, and 14 from the uniform distribution.