Data point X value is 130 and has an assigned weight of seven Data point Y value is 310 and has an assigned weight of 12  data Z value is 295 and has an assigned weight of 5  what is the total weight

Find the total weight of three items that weigh: 1 2 2 8- kg, 7 kg, and 3 kg. 4 4 7 kg

Assume the X units are dollars. Find the units ofX-bar, s^2, s, and C.V.

55% x 252

On a map the perimeter of a park iso.251 meters. The actual perimeter of the park is 1000 times as large. What is the actual perimeter of the park?

find he unit rate for 2 blouses for 118

The estimated population of Los Angeles in 2019 was 3,979,576. Its area is 469 square miles. What is the population density of Los Angeles, in people per square mile? people per square mile

%3D di

Identifying individuals with a high risk of Alzheimer’s disease usually involves a long series of cognitive tests. However, researchers have developed a 7-Minute Screen, which is a quick and easy way to accomplish the same goal. The question is whether the 7-Minute Screen is as effective as the complete series of tests. To address this question, Ijuin et al. (2008) administered both tests to a group of patients and compared the results. The following data represent results similar to those obtained in the study:   Patient            7-Minute         Screen Cognitive Tests  A                            3                           11  B                            8                           19  C                          10                           22  D                            8                          20  E                            4                           14  F                            7                           13  G                           4…