Consider two groups of randomly selected peppers, where neither group has all big or all small peppers. well distributed between the two A mean difference of zero indicates the peppers groups.

A mean difference of zero indicates that the peppers are well distributed between the groups

Step-by-step explanation:

The mean difference between two groups is a measurement of the absolute difference between the values of the mean of each of the two groups within the experimental trial, in order to determine if an intervention changes the average of one of the groups, compared to the other which is the control group

A mean difference of zero shows that the distribution of the sizes within each group is the same, and that the pepper sizes are on average, equal in each group

Therefore, a mean difference of zero indicates that the peppers are well distributed between the groups

(a) the volume of the cone is 20/3 in3

hence, option a is correct.