Answer:
3,5
Step-by-step explanation:
hello don't worry it's easy its A
Answer:
60
Step-by-step explanation:
50 times .2(20%) equals 10. 10 is 20% of 50 so add 10 to 50 and you get 60
Given that variance of a data set is:
Variance=σ²
the standard deviation is the square root of the variance:
thus
standard deviation= √(variance)
variance,σ²=104.04
thus
std deviation=√σ²=√104.04
thus
σ=10.2
