Answer:
a) $700, 000
b) $550, 000
c) $200, 000
Step-by-step explanation:
By symmetric principle. What happen is just a stretch in the length of scale of the distribution. Initially, we stopped at maximum of $100, 000. The scale was accidentally extended by a multiple of 10 => $1000, 000. The whole curve will automatically extends too; shifting the mean, median and standard deviation by the same measure of multiple!
A good point to make is that, the question didn't tell us that the sample size (n) increases. It means that the sample size (n) is still = 10 employees. The only error was that, their salaries was accidentally multiply by $10.
If you are familiar with R programming, try this illustration on you own:
###############################
x = c(2,3,4,5,6,7,8,9,1,3)
mean(x)
median(x)
sd(x)
max(x)
#... now, let's multiply by 10
x = c(20,30,40,50,60,70,80,90,10,30)
mean(x)
median(x)
sd(x)
max(x)
###############################
The results are exactly a multiple of 10!
