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3 years ago

Equations!!

Mathematics

1 answer:

Grace [21]3 years ago

5 0

Answer: Month 10

If you do 400 + (20 x 10) you get 600

If you do 200 + (40 x 10) you get 600

Hope this helps!

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A survey of 400 non-fatal accidents revealed that 268 involved a distracted driver using some kind of electronic device. Constru

Misha Larkins [42]

A 95% confidence interval for the proportion of non-fatal accidents involving a distracted driver using some kind of electronic device is 62.5%<x<71.61%

The 95% confidence interval for the proportion is expressed according to the formula;

$CI=p\pm z\sqrt{\frac{p(1-p)}{n} }$

p is the proportion = 268/400 = 0.67

z is the 95% z-score = 1.96

n is the sample space = 400

Substitute the given parameters into the formula to have:

$CI=0.67\pm 1.96\sqrt{\frac{0.67(1-0.67)}{400} }\\CI=0.67\pm 1.96\sqrt{\frac{0.67(0.33)}{400} }\\CI=0.67\pm 1.96(0.0235)\\CI=0.67 \pm 0.0461\\CI=(0.67-0.0461, 0.67+0.0461)\\CI=(0.624, 0.7161)\\CI = (62.4 \%, 71.61 \%)$

Hence a 95% confidence interval for the proportion of non-fatal accidents involving a distracted driver using some kind of electronic device is 62.5%<x<71.61%

Learn more on confidence interval here: brainly.com/question/17212516

5 0

3 years ago

What is the factored form of x2 - 6x – 16?

liraira [26]

The factored form is (x - 8)(x + 2).

(x - 8)(x + 2)
x^2 + 2x - 8x - 16
x^2 - 6x - 16

4 0

4 years ago

A Poker hand consisting of five cards is dealt from a deck of fifty two cards. What is the probability that the Poker hand consi

Ne4ueva [31]

Answer: 108336

Step-by-step explanation:

given data:

cards on deck = 52

Since 2 queens are supposed to be in the 5 card hand. Therefore, 2 queens are choosen since we have a total of 4.

Since 2 Queens have been chosen already choosen. we are left with 3cards out of the hand of 5. This cards are to be choosen from the 48 remaining cards. Similarly same process would be used for other combination of playing cards.

(42∗483)+(43∗482)+(44∗481).

= (6 * 17296) + (4 * 1128 ) + (1 * 48)

= 103776 + 4512 + 48

=108336

3 0

4 years ago

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Llana [10]

What is this?? I won't understand

7 0

3 years ago

A number p increased by 22

Mariana [72]

the answer is ~

p + 22

7 0

3 years ago

Read 2 more answers