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svet-max [94.6K]
3 years ago
9

Dangers drinking alcohol in young people today and causes of it​

Mathematics
1 answer:
Minchanka [31]3 years ago
4 0

Answer:

School problems, such as higher rates of absences or lower grades.

Social problems, such as fighting or lack of participation in youth activities.

Legal problems, such as arrest for driving or physically hurting someone while drunk.

Physical problems, such as hangovers or illnesses.

hope this helps

have a good day :)

Step-by-step explanation:

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In a study on the time that
krok68 [10]

The 95% confidence interval of the population mean, in years, is (4.3, 5.3). 4 years is not part of the confidence interval, which means that it contradicts the fact that 39% of students get their college degree in four years.

-----------------------------

To solve this question, we need to find the confidence interval for the amount of time it takes the students to get the degree.

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

-----------------------------

The first step to solve this problem is finding how many degrees of freedom,which is the sample size subtracted by 1. So

df = 80 - 1 = 79

-----------------------------

95% confidence interval

Standard level of confidence, we have to find a value of T, which is found looking at the t table, with 79 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 1.9905.

-----------------------------

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.9905\frac{2.2}{\sqrt{80}} = 0.5

In which s is the standard deviation of the sample and n is the size of the sample.

-----------------------------

The lower end of the interval is the sample mean subtracted by M. So it is 4.8 - 0.3 = 4.3 years.

The upper end of the interval is the sample mean added to M. So it is 4.8 + 0.3 = 5.3 years.

-----------------------------

The 95% confidence interval of the population mean, in years, is (4.3, 5.3). 4 years is not part of the confidence interval, which means that it contradicts the fact that 39% of students get their college degree in four years.

A similar question is given at brainly.com/question/24278748

6 0
2 years ago
List the first four terms of the geometric sequence.
luda_lava [24]

Answer:

you dont have to say nothing

Step-by-step explanation:

your dum anyways u cant even do nothing right u just on brainly to chet cant do school work and  that u are going to fail so sad

3 0
3 years ago
A pound of blueberries costs $3
Irina-Kira [14]

Answer:

$6.87

Step-by-step explanation:

For the blueberries we multiply 3.98 with .6 pounds to get 2.39

We do the same for the other item 2.49 X 1.8 = 4.48

Total the two for the answer:

2.39 + 4.48 = 6.87

3 0
2 years ago
Problem 1
KonstantinChe [14]

Answer:

The hypotenuse measures 8.48 meters.

Step-by-step explanation:

Given that a right isosceles triangle has legs of 6 meters long each, to find the length of the hypotenuse to the nearest tenth of a meter the following calculation must be performed, through the application of the Pythagorean theorem:

6 ^ 2 + 6 ^ 2 = X ^ 2

36 + 36 = X ^ 2

√ 72 = X

8.48 = X

Therefore, the hypotenuse measures 8.48 meters.

7 0
2 years ago
4.521x10^1 in scientific notation
Vikki [24]

Answer:

if you are asking for the real number, the answer would be 45.21

Step-by-step explanation:

We simply multiply by 10 since we are given 1 as an exponent

3 0
2 years ago
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