Answer:
That is correct
Step-by-step explanation:
When doing the math you can find that b and d are correct
Answer:
0.5 chance
1/2 chance
Reason:
Half the bag is peanuts therefore there is half a chance you will pick one out
Yes because in Mrs. Benson‘s class there are 20 students and in Mrs Tracy’s class there are only 18
− 10/8
− 15/12
− 20/16
− 25/20
− 40/32
These are all equal, the list could go on but here are many
Answer:
Option c -2.8571
Step-by-step explanation:
z-score are calculated as
.
We are given that mean=120 and standard deviation=S.D=35 as X~N(120,35).
Sample size=n=25.
We have to find z-score for x-bar=100. So,
z-score=[100-120]/[35/√25]
z-score=[-20]/[35/5]
z-score=-20/7
z-score=-2.8571.
Thus, the z-score associated with x-bar = 100 is -2.8571.