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2 years ago

If C{1,2} and D={4,5,6}, find C×D by tabulation method. i need for exam

Mathematics

1 answer:

Katarina [22]2 years ago

4 0

Answer:

Step-by-step explanation:

C * D = {(x,y): x is an element of C and y is an element of D.}

C * D = { (1,4), (1,5), (1,6), (2,4), (2,5), (2,6) }

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3 years ago

Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. The

Tems11 [23]

Answer:

The 84% confidence interval for the population proportion that claim to always buckle up is (0.74, 0.80).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

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They randomly survey 387 drivers and find that 298 claim to always buckle up.

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84% confidence level

So $\alpha = 0.16$ , z is the value of Z that has a p-value of $1 - \frac{0.16}{2} = 0.92$ , so $Z = 1.405$ .

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The upper limit of this interval is:

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3 years ago

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yaroslaw [1]

Answer: x=4, y=-2

Step-by-step explanation: 4x+y=14, x-2y=8

4x+y-y=14-y

4x/4=14/4-y/4

x=14-y/4-(2y)(4)/4

4(14-9y)/4=(8)(4)

14-9y-14=32-14

-9y/-9=18/-9

y=-2

(14)-(-2)/4

14+2/4

16/4

x=4

x=4, y=-2

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3 years ago

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If C{1,2} and D={4,5,6}, find C×D by tabulation method. i need for exam​

If C{1,2} and D={4,5,6}, find C×D by tabulation method. i need for exam