Question 11 (2 points)

In how many ways it is possible to seat five different people in five chairs?(HINT: order is not specified)

Question 12 (1 point)

Question 12 options:

10!/8! = ?

Question 13 (2 points)

How many 10 letter arrangements of 10 letters in the word statistics are possible?

Question 14 (3 points)

How many different ways can 5 out of 8 different shirts, 4 out of 10 different pieces of slacks, and 3 out of 6 different ties to be selected?

Question 15 (5 points)

Calculate the sample variance and sample standard deviation for the data set below:

30, 45, 40, 50, 43, 60

Question 16 (3 points)

A security code of four digits from digits 0 to 9 must be entered in a definite order. How many four-digit codes are possible if repetition of digits is allowed?(HINT: digits must be entered in a definite order)