Answer:
a = 4
b = 26
Step-by-step explanation:
median is the middle number(s)
middle numbers are 22 and b
if the median is 24 then
that means the average if 22 and b is 24
so do the math in reverse
22 and b are 2 numbers
24 * 2 = 48
22 + b = 48
48 - 22 = 26
b = 26
mean is average
so do the math in reverse
there are 10 numbers
the average or mean is 19
so all the numbers add up to 190
3+a+10+13+22+26+27+27+28+30 = 190
a + 186 = 190
a = 4
