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luda_lava [24]
3 years ago
7

Tina conducted a survey to find the favorite weekend activity of the people in her state. She asked 10 of her neighbors what the

ir favorite weekend activity is. Tina concludes that boating is the favorite weekend activity of the people in her state because 70% of her neighbors like to go boating on weekends.
Use at least two sentences to explain why Tina's sample may not be valid. Make sure to use facts to support your answe
Mathematics
2 answers:
oksano4ka [1.4K]3 years ago
6 0

Answer:

This statement is not valid because she did not take a random sample group from people in her state which could affect the outcome. She also just asked if the neighbors liked boating, and not what their favorite boating activity was.

Step-by-step explanation:

This statement is not valid because she did not take a random sample group from people in her state which could affect the outcome. She also just asked if the neighbors liked boating, and not what their favorite boating activity was.

\

sattari [20]3 years ago
5 0

Answer:

Tina conducted a survey to find the favorite weekend activity of the people in her state. She asked 10 of her neighbors what their favorite weekend activity is. Tina concludes that boating is the favorite weekend activity of the people in her state because 70% of her neighbors like to go boating on weekends.

Use at least two sentences to explain why Tina's sample may not be valid. Make sure to use facts to support your answe

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UNO [17]

Answer: The answer is 5.

3 0
3 years ago
In a certain city, there are about one million eligible voters. A simple random sample of size 10,000 was chosen to study the re
Ronch [10]

Answer:

REQUIRED TEST STATICS IS 35.19

Step-by-step explanation:

total size of sample = 10,000

                                     men                            women

voted                           2777                            3466

did not vote                  1444                             2313

By chi square test we can find the relationship between gender and participation in the election

<em>X^2 = \frac{ N(ad-bc)^2}{(a+c)(b+d)+(a+b)(c+d)}</em>

where

a represent  = 2777, b = 3466, c= 1444, d = 2313, N = 10000

Putting values to get chis square statics

<em>X^2 = \frac{ 10000(2777*2313-3466*1444)^2}{(2777+1444)(3466+2313)+(2777+3466)(1444+2313)}</em>

<em>X^2 = = 35.159</em>

HENCE REQUIRED TEST STATICS IS 35.19

3 0
3 years ago
A softball team played 149 games. The team won 8 more than two times the number of games they lost. How many games did they lose
BlackZzzverrR [31]

The number of game the softball team lose is 47 games.

<h3 /><h3 /><h3>The softball team played 149 games. </h3>

Total games played = 149 games

The team won 8 more than two times the number of games they lost.

Let

the number of games they lost = x

Therefore,

  • number of game won = 8 + 2x

The number of game they lose can be calculated as follows:

8 + 2x + x = 149

8 + 3x = 149

3x = 149 - 8

3x = 141

x = 141 / 3

x = 47

Therefore, the team lost 47 games.

learn more on algebra here: brainly.com/question/14406047?referrer=searchResults

6 0
2 years ago
(-3,4) m= -3 how would you solve this problem
nignag [31]

you would do PEMDAS

you do -3 times 4. then you do that and devide by -3.

5 0
3 years ago
In triangle ABC, c is the hypotenuse, 0=25°, and b =3, Find the length of c ?
Charra [1.4K]

Answer:

\large\boxed{c\approx3.31}

Step-by-step explanation:

Use cosine:

cosine=\dfrac{adjacent}{hypotenuse}

\cos\theta=\dfrac{b}{c}

We have:

\theta=25^o\to\cos25^o\approx0.9063\\\\b=3

Substitute:

\dfrac{3}{c}=0.9063

\dfrac{3}{c}=\dfrac{9063}{10000}          <em>cross multiply</em>

9063c=30000          <em>divide both sides by 9063</em>

c\approx3.31

8 0
3 years ago
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