Question

!!!!!!!!!!!!!Bros i need some serious help!!!!!!!!!!!!!

Answer 1

Answer:                                 ------ Facial hair ------

                               

Age                         

                                   Yes         No      Total

30 and younger       0.267     0.200   0.467

older than 30           0.333     0.200    0.533

Total                         0.600     0.400    1.000

Step-by-step explanation:

1.  Count the number of people for each category:

a) People who were 30 and younger and had facial hair:

1: 30 and younger. Yes

9: 30 and younger. Yes

10: 30 and younger. Yes

12: 30 and younger. Yes

Total: 4 people were 30 and younger and had facial hair

b) People who were 30 and younger and did not have facial hair:

2: 30 and younger.No

4: 30 and younger. No

14: 30 and younger. No

Total: 3 people were 30 and younger and did not have facial hair

c) People who were older than 30 and had facial hair:

6: Older than 30. Yes

7: Older than 30.Yes

11: Older than 30. Yes

13: Older than 30. Yes

15: Older than 30. Yes

Total: 5 people were older than 30 and had facial hair.

d) People who were older than 30 and did not have facial hair:

3: Older than 30. No

5: Older than 30. No

8: Older than 30. No

Total: 3 people were older than 30 and did not have facial hair.

2. Build a two way table with the absolute frequencies:

                              ------ Facial hair ------

                               Yes         No     Total

Age    

30 and younger       4               3          7

older than 30           5               3          8

Total                         9               6         15

3. To build the two-way relative frequency table, divive each absolute frequency by the total number of men (15):

These are the quotients:

4/15 = 0.267

3/15 = 0.200

7/15 = 0.467

5/15 = 0.333

3/15 = 0.200

8/15 = 0.533

9/15 = 0.600

6/15 = 0.400

15/15 = 1.000

Now write the table with the relative frequencies:

                              -------- Facial hair --------

                               Yes         No         Total

Age    

30 and younger       0.267     0.200   0.467

older than 30           0.333     0.200    0.533

Total                         0.600     0.400    1.000

And that is the requested table written to three decimal places.