Answer:
(4th Option)
X P
----------------
18-22 0.169
23-27 0.324
28-32 0.265
33-37 0.243
I just took the quiz, this is the correct answer :)
Answer:
Step-by-step explanation:
eq. of a circle is (x-h)²+(y-k)²=r²
where center=(h,k)
and radius=r
so (x+2)²+(y+5)²=4²
The correct answer is: 236,588 mg.
Answer:
84%.
Step-by-step explanation:
Let X be the time in minutes for a student chosen at random to finish the test. .
The probability that a student chosen at random finishes the test in less than 48 minutes will represented as
.
<h3>Method 1: technology</h3>
Evaluate the cumulative normal probability on a calculator, where
- The lower bound is 0,
- The upper bound is 48,
- The mean ,
- The standard deviation
.
<h3>Method 2: z-score table</h3>
.
.
Look up the entry that corresponds to on a z-score table: 0.8413.
In other words,
.