Answer:
Your answer is B.
Step-by-step explanation:
4 x 2 = 8
I know this because 12 / 6 = 2.
Therefore, Sense it is divided by two, you multiply the 4 by 2.
Answer:
The probability that the average age of a randomly selected sample of 100 students will be less than 21.8 years is 0.159
Step-by-step explanation:
According to the given data we have the following:
mean = μ= 22
standard deviation = σ = 2
n = 100
μx = 22
σx=σ/√n=2/√100=0.2
Therefore, P( x < 21.8)=P(x-μx)/σx<(21.8-22)/0.2
=P(z<-1)
= 0.159
The probability that the average age of a randomly selected sample of 100 students will be less than 21.8 years is 0.159
Which is the least of what!?
Exaxt form
-5.45*10^4
Decimal Form
-54500
