Answer:
The probability that there are 3 or less errors in 100 pages is 0.648.
Step-by-step explanation:
In the information supplied in the question it is mentioned that the errors in a textbook follow a Poisson distribution.
For the given Poisson distribution the mean is p = 0.03 errors per page.
We have to find the probability that there are three or less errors in n = 100 pages.
Let us denote the number of errors in the book by the variable x.
Since there are on an average 0.03 errors per page we can say that
the expected value is,
= E(x)
= n × p
= 100 × 0.03
= 3
Therefore the we find the probability that there are 3 or less errors on the page as
P( X ≤ 3) = P(X = 0) + P(X = 1) + P(X=2) + P(X=3)
Using the formula for Poisson distribution for P(x = X ) = 
Therefore P( X ≤ 3) = 
= 0.05 + 0.15 + 0.224 + 0.224
= 0.648
The probability that there are 3 or less errors in 100 pages is 0.648.
Answer:
I need numbers to do a step by step
but the formula for the surface area of a cone.
Firstly, you work out the circle, pi x radius squared.
then you work out the cone
You can now use the measurement of the side to find the area of the cone. The formula for the area of a cone is 3.14 times the radius times the side (πrl).
So the surface area of the cone equals the area of the circle plus the area of the cone and the final formula is given by:
SA = πr2 + πrl
Answer:
The meaning of kiss is touch or caress with the lips as a sign of love, sexual desire, or greeting.
Step-by-step explanation:
Hope it will help
<em>p</em><em>l</em><em>e</em><em>a</em><em>s</em><em>e</em><em> </em><em>m</em><em>a</em><em>r</em><em>k</em><em> </em><em>a</em><em>s</em><em> </em><em>a</em><em> </em><em>b</em><em>r</em><em>a</em><em>i</em><em>n</em><em>l</em><em>i</em><em>s</em><em>t</em><em>s</em>
Answer:
I think the answer is 4<u>π</u><u>u</u><u>n</u><u>i</u><u>t</u><u>s</u>
Answer:
[ 1,532.41, 1,617.59]
Step-by-step explanation:
Data provided :
Sample size, n = 120
Mean = $1,575
Standard deviation = $215
Confidence level = 97%
Now,
Confidence interval = Mean ± 
also,
for 97% confidence level z score = 2.17 [from standard z-table]
= $1,575 ± 
= $1,575 ± 42.59
Therefore,
Confidence interval = [ $1,575 - 42.59, $1,575 + 42.59]
= [ 1,532.41, 1,617.59]