Question

A poll of 2000 teenagers found that 1 in 8 teenagers Carrie's a weapon. In a...

A poll of 2000 teenagers found that 1 in 8 teenagers Carrie's a weapon. In a typical high school with 1200 students, what is the probability that more than 125 students, but fewer than 165, carry a weapon? use the normal approximation to the binomial distribution. The probability is____. round 4 decimal places

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Probability that more than 125 students but fewer than 165 carry weapon is 0.8796

Complete solution is given in attached image:

Thank You.

0 0
Know the answer?
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
Similar Questions
Census data show that 3?% of students in a certain country went to college or a...
Census data show that 3?% of students in a certain country went to college or a trade school within a year of graduating from high school. A random sample of 453 high school graduates is selected. Use the normal approximation to the binomial distribution to complete parts a through e below. a. What are the mean and standard deviation of this? distribution? b. What is the probability that 16 or fewer students will go to? college? c. What is the...
Approximate the following binomial probability by the use of normal approximation. Twenty percent of students who...
Approximate the following binomial probability by the use of normal approximation. Twenty percent of students who finish high school do not go to college. What is the probability that in a sample of 80 high school students, 10 or less will not go to college? (Enter as a decimal rounding to 3 decimal places).
Although studies continue to show smoking leads to significant health problems, 30% of adults in a...
Although studies continue to show smoking leads to significant health problems, 30% of adults in a country smoke. Consider a group of 250 adults, and use the normal approximation of the binomial distribution to answer the questions below. (a) What is the expected number of adults who smoke? (b) What is the probability that fewer than 65 smoke? Use the normal approximation of the binomial distribution to answer this question. (Round your answer to four decimal places.) (c) What is...
You may need to use the appropriate appendix table or technology to answer this question. Although...
You may need to use the appropriate appendix table or technology to answer this question. Although studies continue to show smoking leads to significant health problems, 20% of adults in a country smoke. Consider a group of 450 adults. (b)What is the probability that fewer than 80 smoke? Use the normal approximation of the binomial distribution to answer this question. (Round your answer to four decimal places.) (c)What is the probability that from 95 to 100 smoke? Use the normal...
Use the following for the next 4 questions: A recent national survey found that high school...
Use the following for the next 4 questions: A recent national survey found that high school students watched an average of 6.8 DVDs per month with a population standard deviation of 2.5 hours. The distribution of times follows the normal distribution. A random sample of 36 college students revealed that the mean number of DVDs watched last month was 6.1. At the 0.05 significance level, can we conclude that college students watch fewer DVD's a month than high school students...
A recent national survey found that high school students watched an average (mean) of 7.2 DVDs...
A recent national survey found that high school students watched an average (mean) of 7.2 DVDs per month with a population standard deviation of 0.90 hour. The distribution of DVDs watched per month follows the normal distribution. A random sample of 35 college students revealed that the mean number of DVDs watched last month was 6.20. At the 0.05 significance level, can we conclude that college students watch fewer DVDs a month than high school students? b. State the decision...
According to the High School Athletics Participation Survey, 55% of students enrolled in high school participate...
According to the High School Athletics Participation Survey, 55% of students enrolled in high school participate in athletic programs. Suppose 12 high school students are randomly selected and the number who participate in athletic programs is recorded. Round probabilities to 4 decimal places. Explain why this is a binomial experiment. Find and interpret the probability that exactly 7 high school students participate in athletic programs. Find and interpret the probability that fewer than 7 high school students participate in athletic...
A recent Gallup Poll found that 95% of American adults are "satisfied with their personal life."...
A recent Gallup Poll found that 95% of American adults are "satisfied with their personal life." Suppose you take a random sample of 5 Americans and ask each one if they are "satisfied with their personal life" and record the number who report personal life satisfaction. Use this experiment to answer the following questions. Round solutions to four decimal places, if necessary. a. Create a binomial probability distribution (table) for this experiment. b. Calculate the mean of the binomial distribution....
A telemarketer found that there was a 1% chance of a sale from his phone solicitations....
A telemarketer found that there was a 1% chance of a sale from his phone solicitations. Find the probability of getting 5 or more sales for 1000 telephone calls. Note: Use a normal approximation to the binomial distribution.
Suppose in a local Kindergarten through 12th grade (K - 12) school district, 53 percent of...
Suppose in a local Kindergarten through 12th grade (K - 12) school district, 53 percent of the population favor a charter school for grades K through five. A simple random sample of 600 is surveyed. Calculate the following using the normal approximation to the binomial distribution. (Round your answers to four decimal places.) (a) Find the probability that less than 240 favor a charter school for grades K through 5. (b) Find the probability that 315 or more favor a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT