Answer:
0.9544 or 95.44%
Step-by-step explanation:
Given: Mean= 37
Standard deviation= 6
x= 25 and 49.
Now, solving to find the percentage of daily phone calls numbering between 25 and 49.
first calculating the z-score for daily 25 phone calls.
Formula;
z-score=
z-score=
∴ z-score for daily 25 phone call is -2.
Next, calculating the z-score for daily 49 phone calls.
z-score=
z-score=
∴ z-score for daily 49 phone call is 2.
We can observe that there is change in z-score for 25 phone call and 49 phone call.
Lets use the normal distribution table to find the percentage of daily phone calls numbering between 25 and 49.
⇒ Percentage of daily phone calls numbering between 25 and 49=
⇒ Percentage of daily phone calls numbering between 25 and 49=
Using normal distribution table
⇒ Percentage of daily phone calls numbering between 25 and 49=
Hence, 0.9544 or 95.44% is the percentage of daily phone calls numbering between 25 and 49.
The width of the rectangle as a function of its length is w = 55/l
<h3>How to find the area of a rectangle?</h3>
The formula for finding the area of a rectangle is expressed as:
A = lw
where
l is the length
w is the width of the rectangle
Given that A = 55 square inches, then;
55 = lw
w = 55/l
Hence the width of the rectangle as a function of its length is w = 55/l
Learn more on area of rectangle here; brainly.com/question/2607596
Answer:
$42.95
Step-by-step explanation:
128.85 divided by 3 is 42.95.
each video game costed $42.95
hope this helps
Answer: 74.75 miles
Step-by-step explanation:
It’s work from school, 7.3+22.6 is 29.9 29.9x2 1/2 is 74.75
Answer:
n=37
Step-by-step explanation:
45-8=37