ZuoTi.Pro
Question

Part 1. A company tested their version of the self driving car. It found that the...

Part 1.

A company tested their version of the self driving car. It found that the number of errors/accidents per 100 cars had the following probability distribution:

x P(x)
0 0.15
1 0.2
2 0.1
3 0.55

Find the standard deviation of this probability distribution. Round your answer to 2 decimal places.

PART 2

The mean weight of a blue whale is 175 pounds and the standard deviation is 20. A blue whale that is being researched by scientists weights 165 pouinds. What is the z-score for this raw score?
z-score =

PART 3
Kelly completed a blood test to help determine what was causing her fever. The doctor compared the results to the mean of 71 with a standard deviation of 4.8. Calculate the z-score (to 2 decimal places) for Kelly to determine if her score of 76 is unusual or not.
z-score:
Is this usual or unusual?

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

3 0.55 O. 2 to . 2 t-1.65 ごち.ss-(2 ,05) 「S. 55-4、20 2 V(K)- 1.347-5 s pounds5 pounds art 3 n= 지

0 0
Add a comment
Know the answer?
Add Answer to:
Part 1. A company tested their version of the self driving car. It found that the...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • With a height of 64 in, Nelson was the shortest president of a particular club in...

    With a height of 64 in, Nelson was the shortest president of a particular club in the past century. The club presidents of the past century have a mean height of 73.2 in and a standard deviation of 2 2 in. a. What is the positive difference between Nelson's height and the mean? b. How many standard deviations is that [the difference found in part (a)]? c. Convert Nelson's height to a z score d. If we consider "usual" heights...

  • This Question: 5 pts A particular group of men have heights with a mean of 176...

    This Question: 5 pts A particular group of men have heights with a mean of 176 cm and a standard deviation of 6 cm Richard had a height of 196 cm. a. b. c. What is the positive difference between Richard's height and the mean? How many standard deviations is that [the difference found in part (a)? Convert Richard's height to a z score. d. f we consider "usual heights to be those that convert to z scores between -2...

  • This Question: 5 pts 8 af 10 (3 complete) This With a height of 68 in,...

    This Question: 5 pts 8 af 10 (3 complete) This With a height of 68 in, Johnson was the shortest president of a particular club in the past century. The club presidents of the past century have a mean height of 74.5 in and a standard deviation of 19 in a. What is the positive difference between Johnson's height and the mean? b. How many standard deviations is that [the difference found in part (a) C. Convert Johnson's height to...

  • With a height of 60 in, Vincent was the shortest president of a particular club in...

    With a height of 60 in, Vincent was the shortest president of a particular club in the past century. The dlub presidents of the past century have a mean height of 61.3 in and a standard deviation of 1.2 in a. What is the positive difference between Vincents height and the mean? b. How many standard deviations is that the difference found in part (al? c. Convert Vincent's height to a z score. d. Ifwe consider "usual heights to be...

  • part1. The Psych 230 students finished the course with a total population mean of 155 points...

    part1. The Psych 230 students finished the course with a total population mean of 155 points and the standard deviation is 50 points. One student earned 300 points. What is the z-score for this raw score? z-score = part 2. The average feet for American men are normally distributed, with a mean of 11 inches and a standard deviation of 0.66 inches. The average feet for American women are also normally distributed, but with a mean of 10 inches and...

  • do all of part b please :) Part B: Normal Distribution Probabilities. For all questions, include...

    do all of part b please :) Part B: Normal Distribution Probabilities. For all questions, include the probability statement, a sketch, the calculator syntax, and the solution rounded to four decimal places. Ex.) Find the probability that a z-score is less than 2.02. 9.) Assume that annual pear consumption is Ples 2.02) normally distributed with a mean of 8.6 lbs. and standard deviation of 2.2 lbs. Find the probability -0.9783 that annual pear consumption is less than 11 lbs. 2.02...

  • Score: 0 of 1 pt 7 of 11 (9 complete) X 5.4.17 The population mean and...

    Score: 0 of 1 pt 7 of 11 (9 complete) X 5.4.17 The population mean and standard deviation are given below. Find the required probability and determine whether the given sample mean would be considered unusual. For a sample of n-75, find the probability of a sample mean being greater than 214 if213 and 6.2. For a sample of n = 75, the probability of a sample mean being greater than 214 213 and a = 6.2 is 0808 (Round...

  • PART 1 Let X represent the average age of people living in Sun City. Assume that...

    PART 1 Let X represent the average age of people living in Sun City. Assume that X has a normal probability distribution with μ=72 years and σ=10 years. You intend to measure a random sample of n=51 people. What is the mean of the distribution of sample means? μ¯x= What is the standard deviation of the distribution of sample means (i.e., the standard error in estimating the mean)? (Report answer accurate to 2 decimal places.) σ¯x= PART 2 In a...

  • PART 1 31 people were surveyed and reported the amount of money they spend on a...

    PART 1 31 people were surveyed and reported the amount of money they spend on a typical date night. The results were roughly bell-shaped with a mean of $35 and standard deviation of $20. Construct a confidence interval at a 98% confidence level. Give your answers to two decimal places. PART 2 A variable x is normally distributed with mean 19 and standard deviation 6. Round your answers to the nearest hundredth as needed. a) Determine the z-score for x=29....

  • Question 1 Question 3 The amount of time it takes to see a doctor a CPT-Memorial...

    Question 1 Question 3 The amount of time it takes to see a doctor a CPT-Memorial is normally distributed with a mean of 48 minutes and a standard deviation of 16 minutes. What is the Z-score for a 20 minute wait? Round your answer to two decimal places. Question 2 1 pts The battery life of the Iphone has an approximately normal distribution with a mean of 10 hours and a standard deviation of 2 hours. If you randomly select...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT