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almond37 [142]
3 years ago
14

Find the area of the figure

Mathematics
1 answer:
Vitek1552 [10]3 years ago
3 0

Answer:

30 square units

Step-by-step explanation:

split shape into other shapes you know how to find the areas of.

the top half is made of 2 triangles and a rectangle, and the bottom half is one large rectangle

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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
How do you find mode in data
nikdorinn [45]

Answer:

The mode is the number that shows up most frequently

Step-by-step explanation:

Example, in the number set below

1, 1, 2, 3, 4, 4, 4, 4, 5, 7, 35, 36

The mode is 4

4 0
3 years ago
Read 2 more answers
Is 7/12 bigger than 1/2
Varvara68 [4.7K]
Lets think of it this way:-

1/2 is one half

Whats half of 12? 6 

Now, 7 is greater than 6, which means the fraction 7/12 is greater than 1/2

Answer: 7/12 is bigger 
7 0
4 years ago
Read 2 more answers
Which property applies only to addition and subtraction
ad-work [718]
Addition you add and in subtraction you subtract
3 0
3 years ago
What is the answer to the multiplication problem 4×3
nika2105 [10]

Answer:

4x3=12

Step-by-step explanation:


8 0
3 years ago
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