You can play around with Z table stuff at
davidmlane.com/hyperstat/z_table.html
What is the probability that a randomly chosen child has a height of more than 54.7 inches?
I got 0.648 and it’s wrong I’m not sure how though
davidmlane.com/hyperstat/z_table.html
To do this, we can use standardization, also known as the z-score. The formula to calculate the z-score is:
z = (x - μ) / σ
where:
z is the z-score,
x is the value you want to find the probability of (54.7 inches in this case),
μ is the mean of the distribution (55.7 inches in this case), and
σ is the standard deviation of the distribution.
Using the given values, we can calculate the z-score:
z = (54.7 - 55.7) / σ
Now, you have mentioned that the standard deviation is missing in your question. Please provide the standard deviation value so that we can calculate the correct probability.