A study reported a correlation of 0.5 for data relating cannabis use as the predictor variable to early death syndrome as the response variable. Interpret the coefficient of determination for these data. a. A correlation of 5 is very strong; it appears cannabis use causes early death.
b. A correlation of 5 is moderatent appears cannabis use may cause early death.
c. A correlation of .5 is weak; cannabis probably does not cause early death
d. A correlation of 5 is moderate, there appears to be a relationship but the nature of the relationship is not specified

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so,about which interval is it approximately symmetric?

Can you me find the slope! (30 points)

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13