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finlep [7]
3 years ago
13

Pls help me with this one 1,2,3,4​

Mathematics
2 answers:
Grace [21]3 years ago
5 0

Answer:

Option 2.

Explanation:

That method is the most random in order to decide what students should take the survey.

Anon25 [30]3 years ago
4 0

The answer is option 2.

Hope this helps!

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4. The symbolic representation of "every math teacher is also a physics teacher" is___________________.​
kari74 [83]

Answer:

M=P where M is every math teacher and P is every physics teacher.

Step-by-step explanation:

4 0
3 years ago
Simplify the expression. 8x + 7 – 3x
marshall27 [118]
8x + 7 -3x=
15x - 3x=
12x

8 0
3 years ago
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Cornyia swims a 1/2 mile every 1/4 hour how long will it take to swim 2/ 1/2 miles
Pavlova-9 [17]

Answer:

I'm unsure what the final fraction is but if you comment it I'll reply with the answer

Step-by-step explanation:

every hour she travels 2 miles, so in 30 minutes she will travel 1 mile, hopefully that can help

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3 years ago
Jan has $30. Brenda has $66. How many DVDs can they buy with their total amount if one DVD costs $12?
boyakko [2]

Answer: they can buy about 8 dvds

Step-by-step explanation:

this is because 30 + 66 = 96 and if you do 96 divided by 12 it gives you 8

7 0
1 year ago
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A social psychologist predicted that ratings of an individual’s social desirability would be influenced by their physical attrac
marshall27 [118]

Answer:

It is stated in the query that the more attractive the individual, the higher their rank of desirability.

Step-by-step explanation:

This means that we should conclude that the alternative explanation of "higher degree of desire contributes to higher levels of social attractiveness"

In the event of a null hypothesis, we will believe that the degree of attractiveness has no impact on the score of cultural desirability.

(1) Null hypothesis:- The level of attraction does not have an impact on the rating of social desirability.

(2) Alternate hypothesis:- The level of attraction has a positive effect on the ranking of social desirability.

(3) The error of Type I is characterized as the rejection of the true null hypothesis. Therefore, in this case, the type I mistake would be that "the level of attraction has a positive effect on the rating of social desirability while the level of attraction does not have an impact on the rating of social desirability."

(4) The error of type II is characterized as the failure to reject the false null hypothesis. Thus, in this situation, the Type II error would be that "the level of attraction has no impact on the rating of social desirability while the real level of attraction has a positive effect on the rating of social desirability."

(5) We know that the likelihood of having a Form I error is equal to the degree of significance (in percent terms). The significance level, in this case, is 0.05, so the likelihood of making a form I error is 0.05 * 100=5 percent.

Therefore, there is a 5 percent risk of making a Type I mistake.

3 0
3 years ago
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