It would be 5.5y because y equals 1.
I am pretty sure that the answer is the first one but I’m not 100%
The standard deviation of 36,18,12,10 and 9 is 10
Answer:
245
Step-by-step explanation:
let 'c' = total coins
2/7 = 70/c
2c = 490
c = 245
20, 25, 30, 30, 31, 40, 41, 49
median = 30.5
lower IQR = 27.5
upper IQR = 40.5
Range IQR = 40.5 - 27.5 = 13
answer is 13
