Answer:
Yes, the normal curve can be used as an approximation to the binomial probability.
Step-by-step explanation:
Let <em>X</em> = number of students that pass their college placement exam.
The probability that a given student will pass their college placement exam is, P (X) = <em>p</em> = 0.53.
A random sample of <em>n</em> = 127 students is selected.
The random variable <em>X</em> follows a Binomial distribution.
But the sample size is too large.
A Normal approximation to Binomial can be used to approximate the distribution of proportion <em>p</em>.
The conditions to be satisfied are:
- <em>np</em> ≥ 10
- <em>n</em>(1-<em>p</em>) ≥ 10
Check whether the conditions are satisfied as follows:


Both he conditions are satisfied.
Thus, a normal curve can be used as an approximation to the binomial probability.
<span>3^2*11 Here you go again :)</span>
Answer:
it's D
Step-by-step explanation:
pls give me da crown
Answer:
See explantion
Step-by-step explanation:
Given


The question is incomplete as what is required is missing from the question. I'll solve on a general term
A possible question is: Determine the total number of votes by Brett
We have that:

So:

Substitute 314 for Rosa


Another possible question is: Determine the total number of voters.
This is done by:



12 - 3 =9 and -5i+4i=1i or i so it is {9-i}