Mathematics, 21.12.2019 05:31 mfr81
Asample of 161children was selected from fourth and fifth graders at elementary schools in philadelphia. in addition to recording the grade level, the researchers determined whether each child had a previously undetected reading disability. sixty-six children were diagnosed with a reading disability. of these children, 32 were fourth graders and 34 were fifth graders. similarly, of the 95 children with normal reading achievement, 55 were fourth graders and 40 were fifth graders.
a. identify the two qualitative variables (and corresponding levels) measured in the study.
b. from the information provided, form a contigency table.
c. assuming that the two variables are independent, calculate the expected cell counts.
Answers: 1
Mathematics, 21.06.2019 14:50
Alength on a map is 7.5 inches. thescale is 1 inch: 5 miles. what is theactual distance? a 1.5 miles c 12.5 milesb 2.5 miles d 37.5 miles
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Mathematics, 21.06.2019 17:00
Can someone me i’m confused. will give brainliest and a whole bunch of points
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Mathematics, 21.06.2019 17:30
Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.
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Mathematics, 21.06.2019 20:00
Can you me find the missing length. i attached an image.
Answers: 1
Asample of 161children was selected from fourth and fifth graders at elementary schools in philadelp...
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