The gallup poll interviews 1600 people. of these, 18% say that they jog regularly. the news report adds: "the poll had a margin of error of plus or minus three percentage points." you can safely conclude thata. 95% of all gallup poll samples like this one give answers within ±3% of the true population value.b. the percent of the population who jog is certain to be between 15% and 21%.c. 95% of the population jog between 15% and 21% of the time.d. we can be 3% confident that the sample result is true.e. if gallup took many samples, 95% of them would find that exactly 18% of the people in the sample jog.

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general 11 months ago 3308

Make a conjecture. How could the distance formula and slope be used to classify triangles and quadrilaterals in the coordinate plane? Check all that apply. Use the distance formula to measure the lengths of the sides. Use the slope to determine whether opposite sides are parallel. Use the slope to check whether sides are perpendicular and form right angles. Use the distance formula to compare whether opposite sides are congruent. Use the slope to check whether the diagonals are perpendicular to each other. Use the distance formula to compare whether diagonals are congruent.

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general 11 months ago 8562

One of Maria and Josie’s early tasks is printing and laminating signs to hang at local businesses around town. Working alone, Maria could print and laminate the signs in 4 hours. Josie, however, has better laminating equipment, so she could get the job done by herself in 2 hours. If each works for the same amount of time, how long will it take them working together to print and laminate the signs? Start by filling in the table with the missing values or expressions. Note that rate of work is a unit rate that describes the amount of the job completed in one hour.

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general 11 months ago 3357

Which statements are true about a rectangular pyramid with a height of 15 inches and a base with the dimensions of 12 inches and 9 inches? Check all that apply.1.The area of the base of the pyramid, B, is 36 in32.The area of the base of the pyramid, B, is 108 in33.A rectangular prism with the dimensions of 9 in. by 12 in. by 15 in. will have the same volume as this pyramid.4.The volume of this pyramid is 540in 35.A rectangular prism with the dimensions of 9 in. by 12 in. by 15 in. will have 3 times volume of this pyramid.

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general 11 months ago 2141

The table shows summary statistics for guests' ages at two parties.Party Median age (years) Range (years) 1 17 27 2 19 20Which conclusion is true?A. A typical guest at Party 1 was younger than a typical guest at Party 2, and guests' ages were more variable at Party 1 than at Party 2.B. A typical guest at Party 1 was younger than a typical guest at Party 2, and guests' ages were less variable at Party 1 than at Party 2.C. A typical guest at Party 1 was older than a typical guest at Party 2, and guests' ages were more variable at Party 1 than at Party 2.D. A typical guest at Party 1 was older than a typical guest at Party 2, and guests' ages were less variable at Party 1 than at Party 2.

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general 11 months ago 7603

A coach randomly sampled players from two different cities to determine the heights of the players. This table shows the results in inches.City A 63 60 70 66 70 73 78 73 69 75City B 67 73 75 73 69 78 76 74 72 74Which conclusions can you draw about the heights of the players from the two cities?Select each correct answer.On average, the players in City A are a few inches taller than the players in City B.On average, the players in City A are a few inches shorter than the players in City B.On average, the players in the two cities are about the same height.The heights of the players in City A are more variable than the heights of the players in City B.The heights of the players in City A are less variable than the heights of the players in City B.The heights of the players in the two cities vary by about the same amount.

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general 11 months ago 8373