can you please help me with this? thanks in advance

1. How many different samples of size n = 3 can be selected from a population with the following sizes? a. Nod b. N - 8 C. N = 20 d. N - 50 2. A population consists of the five numbers 2, 3, 6, 8, and 11. Consider samples of size 2 that can be drawn from this population. a. List all the possible samples and the corresponding mean. Sample Mean b. Construct the sampling distribution of the sample means. Sampling Distribution of Sample Means Sample Mean Frequency Probability c. Draw a histogram of the sampling distribution of the means