Mathematics, 25.03.2021 23:00 foreignev
The buildings on a certain street are in the repeated order of apartment, restaurant, and store for the entire street. You decide to take a systematic sample using an
interval of 7 buildings, starting from the first building. Using your systematic sample, you estimate that of the 105 buildings on the street, 35 are apartments. How
accurate is your estimate? Explain.
Choose the correct answer below.
O A. The estimate should be fairly accurate. The pattern in the buildings does not
introduce any bias in the sample, so it should be representative of the population.
OB. The estimate is not accurate. The pattern in the buildings does not introduce any bias in the sample, so it is not representative of the population,
O c. The estimate is not accurate. The pattern in the buildings introduces a bias in the sample, so it is not representative of the population.
OD The estimate should be fairly accurate. The pattern in the buildings does not introduce any bias in the sample, so it is not representative of the population.
Answers: 1
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Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?
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What is always true about a positive integer raised to a negative odd power?
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Mathematics, 22.06.2019 00:00, nshadow2920
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
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