Answer: 93
Step-by-step explanation:
Answer:
95.15%
Step-by-step explanation:
We have that the mean (m) is equal to 20, the standard deviation (sd) 3
They ask us for P (x <25)
For this, the first thing is to calculate z, which is given by the following equation:
z = (x - m) / sd
We have all these values, replacing we have:
z = (25 - 20) / (3)
z = 1.66
With the normal distribution table (attached), we have that at that value, the probability is:
P (z <1.66) = 0.9515
Which means that the probability that it arrives before 25 minutes is 95.15%
Hi there!
<em><u>Answer:</u></em>
<em><u>=107</u></em>
<em><u>*The answer must have a positive sign.*</u></em>
Step-by-step explanation:
<h2><u>Lesson: Order of operations</u></h2>
Parenthesis
Exponents
Multiply
Divide
Add
Subtract
It can also go left to right.
First, you do exponents.


Then, you multiply from left to right.

Finally, you add from left to right.

I hope this helps you!
Have a nice day! :)
-Charlie