Question

Assign the selected values with randomly selected elements from the row array dataset. Duplicate selections are acceptable. Hint: Use the randi function and an indexing array.

Answer 1

To assign randomly selected elements from a row array dataset, you can use the randi function and an indexing array. Follow these steps to create a stratified sample by column and pick three quiz scores randomly from each column.

Step-by-step explanation:

To assign randomly selected elements from a row array dataset, you can use the randi function and an indexing array. Here's how:

1. Number each row in your dataset from 1 to 10.
2. Go to the PRB menu on your calculator and select 5:randInt(.
3. Enter the range of numbers for the column you want to sample from, such as 1 to 10.
4. Press ENTER to generate a random number.
5. Repeat the previous step two more times to get a total of three random numbers.
6. Record these three random numbers.
7. Record the three quiz scores in column one that correspond to these three numbers.