The US postal service delivered 7.14 x 1010 pieces of mail in the month of December 7.14 x 1010=7211.4
3.21 x 1010 in the month of January. 3242.1
What is the total mail delivered for these two months?
7211.4
+ 3242.1
__________
10453 .5 TOTAL MAIL
Answer:PPlEASeee
Step-by-step explanation:
Answer:
Hi your question is incomplete attached below is the complete question
answer : p ( X < 725 ) = 0.0116
Step-by-step explanation:
Given data:
Average life of bulbs (μ ) = 750 hours
standard deviation (б ) = 55 hours
n ( sample size ) = 25
X = 725
<u>Probability that the mean life of a random sample of 25 bulbs will be less than725 hours </u>
p ( X < 725 ) = p (( X - μ )/ б √n < 725 - 750 / 55√25 )
= P ( Z > - 2.27 )
Hence P ( X < 725 ) = 0.0116 ( using Z-table )
Answer:
BEcause the sign is a greater than its gonna have a hollow circle. greater than or equal too would have a filled in circle. To solve, divide by -1/3 each side to find the answer
-4>-4/3s
-4/ -4/3>2
-4/-4/3=3
3>s
Therefore
3>S
So you are going to put a hollow circle at 3 and draw an arrow going to the left of 3.
Step-by-step explanation: