Which values will be part of the sequence? 3, 4.5, 6, 7.5, …

A. 9
B. 11.5
C. 15
D. 19.5

9

Step-by-step explanation:

because 3, 4.5, 6, 7.5

3 to 4.5 it skips over 4 then 4.5 to 6 it skips over 5 and 5.5 and because the pattern i see it is 9 because it is gonna skip 8 and 8.5  

two data sets with the same median will not have the same varaibility

step-by-step explanation:

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5