week 7 Statistics question 2

QUESTION 1

1. Calculate the mean for the following values regarding how many times a group of 10 adolescents used drugs or alcohol in the last month: (enter answers to two decimal places, where needed).?

4

0

0

3

2

1

3

1

3

3

2. NOTE: Do not use decimal points with whole numbers such as "2". Use decimal points when the number is not whole such as "2.5".

3.

2 points   

QUESTION 2

1. Calculate the median for the following values regarding how many times a group of 10 adolescents used drugs or alcohol in the last month: (enter answers to two decimal places, where needed).?

4

0

0

3

2

1

3

1

3

3

2. NOTE: Do not use decimal points with whole numbers such as "2". Use decimal points when the number is not whole such as "2.5".

3.

2 points   

QUESTION 3

1. Calculate the mode for the following values regarding how many times a group of 10 adolescents used drugs or alcohol in the last month: (enter answers to two decimal places, where needed).?

4

0

0

3

2

1

3

1

3

3

2. NOTE: Do not use decimal points with whole numbers such as "2". Use decimal points when the number is not whole such as "2.5".

3.

2 points   

QUESTION 4

1. Calculate the?range?for the following values regarding how many times a group of 10 adolescents used drugs or alcohol in the last month: (enter answers to two decimal places, where needed).?

4

0

0

3

2

1

3

1

3

3

2. NOTE: Do not use decimal points with whole numbers such as "2". Use decimal points when the number is not whole such as "2.5".

3.

2 points   

QUESTION 5

1. Calculate the?variance?for the following values regarding how many times a group of 10 adolescents used drugs or alcohol in the last month: (enter answers to two decimal places, where needed).?

4

0

0

3

2

1

3

1

3

3

2. NOTE: Do not use decimal points with whole numbers such as "2". Use decimal points when the number is not whole such as "2.5".

3.

2 points   

QUESTION 6

1. Calculate the?standard deviation?for the following values regarding how many times a group of 10 adolescents used drugs or alcohol in the last month: (enter answers to two decimal places, where needed).?

4

0

0

3

2

1

3

1

3

3

2. NOTE: Do not use decimal points with whole numbers such as "2". Use decimal points when the number is not whole such as "2.5".

3.

2 points   

QUESTION 7

1. Based on the positions of the mean, median, and mode which I just calculated, I know the shape of the distribution must be:

		Normal
		Positively skewed
		Negatively skewed