Answer:the z score is - 1
Step-by-step explanation:
Assuming a normal distribution for the delivery time of sandwiches by Sammy's Sandwich Shop. We would apply the formula for normal distribution which is expressed as
z = (x - u)/s
Where
x = delivery times
u = mean delivery time
s = standard deviation
From the information given,
u = 25 minutes
s = 2 minutes
We want to determine the z-score for the number of sandwiches delivered in less than 23 minutes. It becomes
z = (23 - 25)/2 = - 1
Answer:
X = 1 3/4
Step-by-step explanation:
Hope this helps!
Answer:
look it up
Step-by-step explanation:
L.O.O.K I.T U.P.
Could be 154. 154 rounded to nearest ten= 150, rounded to nearest 100= 200
