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3 years ago

11

Someone has at least three belts, all of his belt are white except two all of his belts are brown except two All of his belt are

blue except two How many belts does he have

1 answer:

elena55 [62]3 years ago

7 0

Answer:

Step-by-step explanation step one he has three and two so you have do math.

step two you need to do the math so,tree+two =5.

last step he has 5 so that is it

that is the steps

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PtichkaEL [24]

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2 years ago

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0 A maker of a certain brand of low-fat cereal bars claims that the average saturated fat content is 0.5 gram. In a random sampl

balandron [24]

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<em>The first step is to determine the average </em>

$x= \frac{0,6+0,7+ 0,7+0,3+0,4+ 0,5+ 0,4 +0,2}{8}\\\ x= 0,475$

<em>The exercise says it’s a normal distribution: (n=8)</em>

$s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183$

<em>According to the exercise, the mean is equal to 0,5 then the value of t of the distribution can be obtained </em>

<em />

$t= \frac{x-u}{\frac{s}{\sqrt{n} }}\\\ t= \frac{0,475 - 0,5}{0,183}\\\ t= -0,3860$

<em>The variable t has 7 grade to liberty, we calculate the p-value as: </em>

$2* P(t < - 0,3860)= \\\ 2* 0,3554 = 0,7108$

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3 years ago

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yarga [219]

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3 years ago