Exam 11: Graphs

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The standard deviation is the square root of the variance.

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Match each region of the horizontal axis, A to F, with its description in terms of μ\mu and σ\sigma .  Match each region of the horizontal axis, A to F, with its description in terms of  \mu  and  \sigma  .
μ\mu to μ+σ\mu +\sigma
region F
μ−σ\mu - \sigma to μ\mu
region E
μ−2σ\mu - 2 \sigma
to μ−σ\mu - \sigma
region C
Correct Answer:
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Premises:
Responses:
μ\mu to μ+σ\mu +\sigma
region F
μ−σ\mu - \sigma to μ\mu
region E
μ−2σ\mu - 2 \sigma
to μ−σ\mu - \sigma
region C
μ+σ\mu +\sigma to μ+2σ\mu + 2 \sigma
region B
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The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 150 pounds and a variance of 4. The material is considered defective if the breaking strength is less than 146 pounds. What is the probability a randomly selected sample will have a breaking strength less than 148 pounds? Please round the answer to the nearest thousandth, if necessary.

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A state ranks 40th (out of 50) in graduation rate for public high schools. What is the state's percentile rank?

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Graph the first-degree inequality in two unknowns. Pick the correct graph. y<−4x+2y < - 4 x + 2

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Tell what the output value is for the function machine for an input of 0.0 .  Tell what the output value is for the function machine for an input of  0 .     f ( 0 ) =  __________ f(0)=f ( 0 ) = __________

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Is (3,2)( 3,2 ) a solution to the system {2x+3y=12x+2y=6\left\{ \begin{array} { l } 2 x + 3 y = 12 \\x + 2 y = 6\end{array} \right. ? Use the given graph of the system to answer the question.  Is  ( 3,2 )  a solution to the system  \left\{ \begin{array} { l }  2 x + 3 y = 12 \\ x + 2 y = 6 \end{array} \right.  ? Use the given graph of the system to answer the question.

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Find the three measures of central tendency. 73,84,82,76,9073,84,82,76,90 If there are multiple answers, separate them with a comma. If there is no answer, enter none. If necessary, round each answer to two decimal places. mean: __________ median: __________ mode: __________

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Find three ordered pairs that satisfy the equation. y=x+3y = x + 3 ( 0 , _____ ) , ( 1 , _____ ) , (  Find three ordered pairs that satisfy the equation.  y = x + 3  ( 0 , _____ ) , ( 1 , _____ ) , (   1 , _____ ) 1 , _____ )

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Graph the first-degree inequality in two unknowns. Pick the correct graph. y>5x−5y > 5 x - 5

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The graph of y=13y = 13 is a vertical line.

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Consider two teams in a tug-of-war. Suppose that the breaking strength of a rope (in pounds) is normally distributed, with a mean of 165 pounds and a standard deviation of 4. What is the probability that the rope will break when subjected to a force of 165 or more pounds ? Please round the answer to the nearest thousandth, if necessary. Consider two teams in a tug-of-war. Suppose that the breaking strength of a rope (in pounds) is normally distributed, with a mean of 165 pounds and a standard deviation of 4. What is the probability that the rope will break when subjected to a force of 165 or more pounds ? Please round the answer to the nearest thousandth, if necessary.

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Connect the points using your own paper. (0,1)( 0,1 ) , (5,16)( 5,16 ) , (3,10)( 3,10 ) , (−1,−2)( - 1 , - 2 ) , (−2,−5)( - 2 , - 5 ) What do you observe?

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Is the graph of a line with equation −5y=2x−3- 5 y = 2 x - 3 a horizontal or a vertical line? Answer a vertical line , a horizontal line, or neither a horizontal nor vertical line.

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Find three ordered pairs that satisfy the equation. 3y+6x=723 y + 6 x = 72 ( _____ , 0 ) , ( _____ , 0.5) , ( 3 , _____ )

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Choose the correct set of points that prepares the graph of the equation y=14x2y = \frac { 1 } { 4 } x ^ { 2 } .

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Tell what the output value is for the function machine for an input of mm  Tell what the output value is for the function machine for an input of  m

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Find the percentile rank. Round your answer to the nearest whole number, if necessary. 2,131 out of 10,000 __________ percentile

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The University ranks as the 16th most expensive out of 50 listed universities. What is the university's quartile rank?

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Graph the inequality. y≤−x+3y \leq - x + 3  Graph the inequality.  y \leq - x + 3

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