Given a data set: 3, 2, 1, 6, please answer questions 6 to 9

1-Compute the sample mean:

A)2.67

B)4

C)3

D)4.3

2-Compute the sample median

A)2

B)3

C)2.5

D)3.9

8-Compute the sample standard deviation

A)3.01

B)2.98

C)1.87

D)1

9-Compute the Estimated population standard deviation

A)2.98

B)1.98

C)2.16

D)1.01