Mathematics, 16.07.2020 01:01, brae3648
A school has 300 eighth-grade students and 200 ninth-grade students. The secretary randomly selects 12 eighth-grade students and 8 ninth-grade students to obtain a sample of size 20. What kind of sampling is this?
Simple random sampling
Stratified random sampling
Systematic sampling
Convenience sampling
Answers: 2
Mathematics, 21.06.2019 17:30, corinaartsy
Match each function with its rate of growth or decay
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Mathematics, 21.06.2019 18:00, phamleson8697
Use the distributive law to multiply. 3(4x + 5y + 6)
Answers: 2
Mathematics, 21.06.2019 19:40, kms275
The cross-sectional areas of a right triangular prism and a right cylinder are congruent. the right triangular prism has a height of 6 units, and the right cylinder has a height of 6 units. which conclusion can be made from the given information? the volume of the triangular prism is half the volume of the cylinder. the volume of the triangular prism is twice the volume of the cylinder. the volume of the triangular prism is equal to the volume of the cylinder. the volume of the triangular prism is not equal to the volume of the cylinder.
Answers: 1
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