Question
upstudy study bank question image url

Score: \( 4 / 13 \) Question 6 In the country of United States of Height, the height measurements of ten-year-old children are approximately normally distributed with a mean of 55.6 inches, and standard deviation of 5.6 inches. What is the jrrobability that the height of a randomly chosen child is between 62.9 and 64.4 inches? Do not round until syou get your your final answer, and then round to 3 decimal places. Answer= (Round your answer to 3 decimal places.) Check Answer

Ask by Schultz Stanley. in the United States
Mar 17,2025

Upstudy AI Solution

Tutor-Verified Answer

Answer

The probability that a randomly chosen child's height is between 62.9 and 64.4 inches is 0.039.

Solution

Sign in to Unlock Answers for Free!

A Learning Platform Trusted by Millions of Real Students and Teachers.

star-icon Unlock

Answered by UpStudy AI and reviewed by a Professional Tutor

Extra Insights

To find the probability that the height of a randomly chosen child is between 62.9 and 64.4 inches, we can utilize the Z-score formula: \[ Z = \frac{(X - \mu)}{\sigma} \] where \(X\) is the height, \(\mu\) is the mean (55.6), and \(\sigma\) is the standard deviation (5.6). First, calculate the Z-scores for 62.9 and 64.4: 1. For 62.9 inches: \[ Z = \frac{(62.9 - 55.6)}{5.6} = \frac{7.3}{5.6} \approx 1.3036 \] 2. For 64.4 inches: \[ Z = \frac{(64.4 - 55.6)}{5.6} = \frac{8.8}{5.6} \approx 1.5714 \] Next, we find the probabilities corresponding to these Z-scores using the standard normal distribution table or a calculator: - The probability for \(Z \approx 1.3036\) is approximately \(0.9032\). - The probability for \(Z \approx 1.5714\) is approximately \(0.9418\). Now, subtract the two probabilities to find the probability that a child's height is between 62.9 and 64.4 inches: \[ P(62.9 < X < 64.4) = P(Z < 1.5714) - P(Z < 1.3036) \approx 0.9418 - 0.9032 = 0.0386 \] Finally, rounding this to three decimal places gives us: **Answer: 0.039**

Related Questions

Latest Statistics Questions

Try Premium now!
Try Premium and ask Thoth AI unlimited math questions now!
Maybe later Go Premium
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy