Solve. 1.3 - 5r = 7.4 PLEASE SHOW YOUR WORK

A poll asked 15 men in two age groups, 30 and younger and older than 30, whether they had facial hair (mustache, beard, sideburn

Cloud [144]

Answer:

------ 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

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.

6 0

3 years ago

HELEEEEEEEEEP MEE I think its even ????

Neko [114]

<h3>Answer: C) Neither even nor odd</h3>

Explanation:

The graph is not symmetric about the y axis, which tells us that the function is not even.

All odd functions pass through the origin, so this function is not odd either.

5 0

3 years ago

Marguerite is building a box. She needs 78 pieces of wood that are 29 cm long. The wood comes in boards that are 6 meters long.

ser-zykov [4K]

First, we are going to multiply the pieces of wood by the length of each piece to find the total length she will need:
$78*29cm=2262cm$

Next, we are going to convert 2262 centimeters to meters. To do that we are going to take advantage of the fact that 1 m=100cm:
$2262cm* \frac{1m}{100cm} =22.62m$

Now, we just need to divide the total length of wood Marguerite needs by the length of each board of wood:
$\frac{22.62m}{6m} =3.77$
Since she will need full boards of wood, we must round 3.77 to its nearest integer 4.

We can conclude that Marguerite will need 4 boards of wood.

7 0

4 years ago

-11-7= please help me

Oxana [17]

The answer would be -18. Hope this helps!

6 0

3 years ago

If T(n) = n - 7, what is the 5th term

Phantasy [73]

For this equation, you simply plug in the number 5 every time you see an n. So T(5)=5-7, which equals -2

6 0

3 years ago