Data collected on the discharge of the Colorado River and speed are given in the table:

Discharge (ft3) Speed
1.3 2.3
2.2 0.99
5.8 3.5
11 5
12 16
14 22
16 27
21 14
49 33

Find r2, and interpret the results. (4 points)

Group of answer choices

0.67; The least-squares regression line, given by ŷ = 3.95 + 0.82x, is a good fit for the data.

0.82; The least-squares regression line, given by ŷ = 3.95 + 0.82x, is not a good fit to the data.

0.82; The least-squares regression line, given by ŷ = 0.82 + 3.95x, is a good fit for the data.

0.67; The least-squares regression line, given by ŷ = 3.95 + 0.67x, is not a good fit for the data.

0.67; The least-squares regression line, given by ŷ = 3.95 + 0.67x, is not a good fit for the data.

Step-by-step explanation:

Plot the data in a spreadsheet and insert a trendline.  The line of best fit is y = 0.67x + 3.95.  The r² value is 0.67.

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

tube or goog would be a great resource to with that question