21 percent of the total people in that group thats 140 that 29.4 and the remainder that is 140- 29.4 should not have gotten sick. so that gets us this right here. we have 29.4 should have gotten sick if the herbs did nothing. and over here we have 110.6 should not have gotten sick and this is pretty close and by just looking at the result it looks like the herb doesnt do too much relative to all of the groups combined. and in the placebo group, lets see what happens. we expect 21 percent to get sick of our group of 120 . so thats 25.2 so this right here, actually this would be the same number over here. i said 21 percent but it is actually 21. something. but the group sizes are the same and we should expect the same proportion to get sick ill say 25.3. just to make it consistant. the reason why i got 25.2 is because i lost some of the trailing decimals over here . but since i had them over here, im gonna use them over here as well and over here, in this group, you would expect 94.7 to get sick. 