Answer:
a) It can be used because np and n(1-p) are both greater than 5.
Step-by-step explanation:
Binomial distribution and approximation to the normal:
The binomial distribution has two parameters:
n, which is the number of trials.
p, which is the probability of a success on a single trial.
If np and n(1-p) are both greater than 5, the normal approximation to the binomial can appropriately be used.
In this question:
So, lets verify the conditions:
np = 201*0.45 = 90.45 > 5
n(1-p) = 201*(1-0.45) = 201*0.55 = 110.55 > 5
Since both np and n(1-p) are greater than 5, the approximation can be used.
Answer:
x + 65 <u>< </u>108
Step-by-step explanation:
Try to use the total which is 650 - 247
by that will give you the answer
Answer:
B) construct the center of a given circle
Answer:
Step-by-step explanation:
The picture of the question in the attached figure
step 1
In the right triangle ABD
Applying the Pythagorean Theorem
----> equation A
step 2
In the right triangle BDC
Applying the Pythagorean Theorem
----> equation B
step 3
In the right triangle ABC
Applying the Pythagorean Theorem
----> equation C
step 4
Equate equation A and equation B
-----> equation D
step 5
substitute equation D in equation C
solve for z
simplify
Find the value of x
Find the value of y