Answer:
1.24 %
Step-by-step explanation:
500 * x * 7 = 43.49
x = 43.49/(7*500) = .0124 1.24 %
Answer:
6
Step-by-step explanation:
The answer is 50%
Step by step
A function must have one y-value for any given x-value.
Usually, if you see the same x-value in the x-column more than once, that's not going to be a function, because that usuall makes a single x-value pair with more than one y-value.
This would be NOT be a function, because x-value of 3 is paired with two different y-values.
<u> x | y</u>
3 7
4 8
3 9
6 7
Can you identify the function?
Using the <em>normal approximation to the binomial</em>, it is found that there is a 0.0041 = 0.41% probability that at most 10 of them married their first love.
<h3>Normal Probability Distribution
</h3>
In a <em>normal distribution</em> with mean
and standard deviation
, the z-score of a measure X is given by:
- It measures how many standard deviations the measure is from the mean.
- After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.
- The binomial distribution is the <u>probability of x successes on n trials, with p probability of a success on each trial</u>. It can be approximated to the normal distribution with
, as long as
and
.
In this problem:
- 40% of people marry their first love, hence
.
- A sample of 50 adults is taken, hence
.
For the approximation, the mean and the standard deviation are given by:


Using continuity correction, the probability that <u>at most 10</u> of them married their first love is
, which is the <u>p-value of Z when X = 10.5.</u>



has a p-value of 0.0041.
0.0041 = 0.41% probability that at most 10 of them married their first love.
To learn more about the <em>normal approximation to the binomial</em>, you can take a look at brainly.com/question/14424710