4 is 2 divided by 8 because 4*2= 8
13.53 kg
1000 g in a kg
13530 ÷ 1000 = 13.53 kg
Answer:
-1
Step-by-step explanation:
Given: Mean= 25 minutes.
Standard deviation= 2 minutes
x= 23 minutes.
Lets find the z-score for the number of sandwiches delivered in less than 23 mins.
Formula: Z-score= 
Z-score= 
⇒ Z-score= 
∴ Z-score will be -1
Hence, -1 is the z-score for the number of sandwiches delivered in less than 23 minutes.
D. You can tell by the opened and closed line dots.