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Ivan
2 years ago
8

What is 1 + 1 im dying from sleep deprivation and I lost the grand math challenge bc of this bro help me pls you smart ppl

Mathematics
1 answer:
Shalnov [3]2 years ago
4 0

Answer:

1

Step-by-step explanation:

say you don't have a dog.. your parents get you one dog, and then get you another, you now have 2 :)

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A driver's education course compared 1,500 students who had not taken the course with 1,850 students who had. Of those students
aivan3 [116]

Answer:

P-value is less than 0.999995 .

Step-by-step explanation:

We are given that a driver's education course compared 1,500 students who had not taken the course with 1,850 students who had.

Null Hypothesis, H_0 : p_1 = p_2 {means students who took the driver's education course and those who didn't took have same chances to pass the written driver's exam the first time}

Alternate Hypothesis, H_1 : p_1 > p_2 {means students who took the driver's education course were more likely to pass the written driver's exam the first time}

The test statistics used here will be two sample Binomial statistics i.e.;

                             \frac{(\hat p_1 - \hat p_2)-(p_1 - p_2)}{\sqrt{\frac{\hat p_1(1- \hat p_1)}{n_1} + \frac{\hat p_2(1- \hat p_2)}{n_2} } } ~ N(0,1)

Here, \hat p_1 = No. of students passed the exam ÷ No.of Students that had taken the course

 \hat p_1  = \frac{1150}{1850}            Similarly,  \hat p_2 = \frac{1440}{1500}          n_1 = 1,850       n_2 = 1,500

  Test Statistics = \frac{(\frac{1150}{1850} -\frac{1440}{1500})-0}{\sqrt{\frac{\frac{1150}{1850}(1- \frac{1150}{1850})}{1850} + \frac{\frac{1440}{1500}(1- \frac{1440}{1500})}{1500} } } = -27.38

P-value is given by, P(Z > -27.38) = 1 - P(Z > 27.38)

Now, in z table the highest critical value given is 4.4172 which corresponds to the probability value of 0.0005%. Since our test statistics is way higher than this so we can only say that the p-value for an appropriate hypothesis test is less than 0.999995 .

6 0
3 years ago
Help please ❤️ I don’t understand
tigry1 [53]

Answer:

75% of 124 is 93.

Step-by-step explanation:

I hoped this helped ^^

8 0
3 years ago
Mathematics Financial literacy
hichkok12 [17]

Answer:

$10,500

Step-by-step explanation:

since his income is b/n $50,000 and $100,000, he pays 15%, (15/100)70,000=$10,500

7 0
3 years ago
Lines l and m are parallel.<br> Use the diagram to determine the measure of ∠3.
Pavlova-9 [17]

Answer:

∠3 is 70°

Step-by-step explanation:

∠1 is 50° since it is across from another 50° angle

and then you use the equation x+25+2x+50=180 to find x

x then equals 35°

you then use the alternate interior angle theorem to say that ∠3 is 2x, or 70°

5 0
3 years ago
Salma is training for a marathon. This week she wants to run a total of 60 miles. She ran 8.55 miles on each of the first 3 days
MArishka [77]

Answer:

51.45 miles

Step-by-step explanation:

7 days = 60 miles

3 days = 8.55 miles

60 - 8.55 = 51.45 miles

6 0
3 years ago
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