3 years ago

1.) what is the probability that a randomly chosen animal is a cat that lives outside

1 answer:

5 0

1)50% cause' all together there are 16 cats. So subtract the 8 from the cats that live inside which gives you another 8. Which is half of 16. 3rd grade math.

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Please answer these question(s)! It has to do with math statistics. I will give you brainliest and thanks!

Viefleur [7K]

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3 years ago

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iVinArrow [24]

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3 years ago

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PLEASE HELP! MATH

nikdorinn [45]

6x^4+9x^2+12x/3x = 2x^3+3x+4

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3 years ago

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Simplify. 8^-4 8-^10 thats a fraction to A) 8^-14 B) 8^-6 C) 8^6 D) 8^14

gogolik [260]

We have 8^(-4) over 8^(-10). The bases are both 8, so we subtract the exponents (numerator minus denominator).

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4 years ago

Automobile mechanics conduct diagnostic tests on 150 new cars of particular make and model to determine the extent to which they

galben [10]

Answer: 0.0944

Step-by-step explanation:

Given : Sample size of cars : n= 150, sample size is greater than 30 , so we use z-test.

Number of cars tested do have faulty catalytic converters =42

Then the proportion of cars have faulty catalytic converters : $\hat{p}=\dfrac{42}{150}=0.28$

Critical value of z for 99% confidence level : $z_{\alpha/2}=2.576$

Formula for Margin of error :

$E=z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$E=(2.576)\sqrt{\dfrac{0.28(1-0.28)}{150}}\\\\=0.0944377199216\approx0.0944\ \text{Rounded to four decimal places}$

Hence, the required margin of error = $0.0944$

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3 years ago