Five members of the football team and five members of the track team ran the 100-meter dash. their times are listed in the table below:

football track
12.1 12.2
13.7 11.2
12.1 11.3
11.7 12.1
14.5 13.2

what is the difference of the means for the two groups?

Idon't want to fail summer school.the probabilities of contamination in medicine capsules due to the presence of heavy metals and different types of microbes are given in the table.the probability of capsule b having microbial contamination is (the same as, greater than, less than) the probability of capsule d having it.