Question

Minnesota Department of Health published the following data of number of COVID-19 test performed (X) and number of positive COVID-19 cases (Y) for seven days : Date Test (X) +ve cases (Y) 04/22 154 04/23 04/24 04/25 1433 1974 - 2023 2514 2218 22:10 2412 04/26 04/27 04/28 221 243 1261 156 214 365 1614 Total 14784 Calculate the correlation coefficient between COVID-19 Test and number of positive cases.

Answer 1

correlation coefficient = COV(x, 4) 6x6N = n([)-(22) (EU) [nza - (2a)] {nsy - (243) where, n=7 = (3504007) - 14784 (1614) [ + (31984258) – (147843] [74403084) - C116) 7 245280 49-23861376 (223889806-218566656] [2821588-2604996 666643 J (5323150) (216592) 66 6673 1073755.887 0. 620879 0.6209 The correlation coefficient between COVIR-IG Test Number of positive cases is 0.6209 and