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natka813 [3]
2 years ago
7

If a jar contains 3 blueberry, 4 ginger, 1 green, and 6 regular tea bags, what is the probability that a regular tea bag will be

pulled from the jar? Answers must be in simplest form.
Mathematics
1 answer:
Nezavi [6.7K]2 years ago
3 0
I love blueberries so 10+y is not right answer
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Factor the polynomial. 6g8 – 3g4 + 9g2 urgentt
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3g^2 (2g^6-g^2+3) the ^ symbole is means to the power

Step-by-step explanation:

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5 0
2 years ago
Given f(x) = 17-xwhat is the average rate of change in f(x) over the interval [1, 5]?
stira [4]
<h2>Answer:</h2>

The average rate of change in f(x) over the interval [1, 5] is -1

<h2>Step-by-step explanation:</h2>

Hi! Let me help you to understand this problem. Here we have the following function:

f(x) = 17-x

We need to compute the Average Rate of Change (ARC) in f(x) over the interval [1, 5]. So <em>what is the average rate of change of a function? </em>In general, for a nonlinear graph whose slope changes at each point, the average rate of change between any two points (x_{1},f(x_{1}) \ and \ (x_{2},f(x_{2}) is defined as the slope of that line through that two points. Here we have a linear function, so the average rate of change will be the slope of the line:

So:

ARC=m=-1

This can also be calculated as:

ARC=\frac{f(x_{2})-f(x_{1})}{x_{2}-x_{1}} \\ \\ ARC=\frac{17-5-(17-1)}{5-1} \\ \\ ARC=-1

4 0
3 years ago
A carload of steel rods has arrived at Cybermatic Construction Company. The car contains 50,000 rods. Claude Ong, manager of Qua
amid [387]

Answer:

There is a 99.24% probability that Claude's sample has a mean between 119.985 and 120.0125 inches.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

The population of rods has a mean length of 120 inches and a standard deviation of 0.05 inch. This means that \mu = 120, \sigma = 0.05.

Claude Ong, manager of Quality Assurance, directs his crew measure the lengths of 100 randomly selected rods. This means that n = 100, s = \frac{\sigma}{\sqrt{n}} = \frac{0.05}{\sqrt{100}} = 0.005.

The probability that Claude's sample has a mean between 119.985 and 120.0125 inches is

We are working with the sample mean, so we use the standard deviation of the sample, that is, s instead of \sigma in the z score formula.

This probability is the pvalue of Z when X = 120.0125 subtracted by the pvalue of Z when X = 119.985.

X = 120.0125

Z = \frac{X - \mu}{\sigma}

Z = \frac{120.0125 - 120}{0.005}

Z = 2.5

Z = 2.5 has a pvalue of 0.9938.

X = 119.985

Z = \frac{X - \mu}{\sigma}

Z = \frac{119.985 - 120}{0.005}

Z = -3

Z = -3 has a pvalue of 0.0014.

So there is a 0.9938 - 0.0014 = 0.9924 = 99.24% probability that Claude's sample has a mean between 119.985 and 120.0125 inches.

7 0
3 years ago
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