Statistics

The number of passengers on the Carnival Sensation during one-week cruises in the
Caribbean follows the normal distribution. The mean number of passengers per cruise is
1,820 and the standard deviation is 120.

a. What percent of the cruises will have between 1,820 and 1,970 passengers?
b. What percent of the cruises will have 1,970 passengers or more?
c. What percent of the cruises will have 1,600 or fewer passengers?
d. How many passengers are on the cruises with the fewest 25 percent of passengers?

  1. 👍
  2. 👎
  3. 👁
  1. Try using the computional tool at this website:
    http://psych.colorado.edu/~mcclella/java/normal/accurateNormal.html

    Enter the mmean and the std. dev., and the limits of the integration interval, and then click "enter". Here are the answers I get:
    (a) 39.4%
    (b) 10.6%
    (c) 3.3%
    (d) 1739 passengers or less make up 25% of the sailings

    1. 👍
    2. 👎
  2. Thank you

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. algebra

    suppose you went to a carnival. the price in was $6, and you paid $0.50 to get on each ride. if you went to the carnival and rodeo 11 rides, how much did you spend?

  2. Math

    The hourly operating cost of an airplane, which seats up to 405 passengers, is estimated to be $5,500. If an airline charges each passenger a fare of $100 per hour of flight, find the hourly profit P it earns operating the

  3. Math

    Sinea and Ren are going to the carnival next week. The table shows the amount that each person spent on snacks, games and souvenirs the last time they went to the carnival. Sinea= Snacks $5.00; Games $8.00; Souvenirs $12.00

  4. social studies

    1. Use the drop-down menu to answer the question. The religions of SanterĂ­a and Vodou are examples of A. The impact of tourism on the Caribbean B. the influence of Creole on the Caribbean languages C. the survival of american

  1. English

    correctly identify the subject and complete verb in the sentence: I should have taken more Caribbean literature courses One of our subscribers wrote a letter of complaint about the magazines quality Your tickets will be sent to

  2. Math

    carnival m charges an entree of $5.00 and $0.65 per tickets for the ride carnival p charges an entree fee of $10.00 and $0.45 per tickets for the ride. How many tickets must be purchased in order for the total cost at carnival m

  3. math

    3/4 of the students in a school were girls and the rest were boys. 2/3 of the girls and 1/2 of the boys attended the school carnival. Find the total number of students in the school if 330 students did not attend the carnival.

  4. math

    An airline knows that, on average, the probability that a passenger will not show up for a flight is 6%. If an airplane is fully booked and holds 300 passengers, how many seats are expected to be empty? If the airline overbooked

  1. Math

    The chart shows the number of cars sold per week at a car dealership during the month of June. Salesperson Week 1 Week 2 Week 3 Week 4 Tim 4 8 2 1 Geena 1 2 7 1 Rafael 2 1 5 4 Sonny 4 1 1 10 How should the data be displayed to

  2. Math

    John has two part time jobs. He works no more than 40 hours per week. He earns $6 per hour from the first job and $8 per hour from the second job. To cover his expenses, he needs to earn at lease $210 per week. Which of the

  3. MUSIC

    What is meant by Caribbean music in a new mode What emphasis, in this chapter, seems to justify a departure from traditional presentations of music and culture of the Caribbean?

  4. general mathematics

    A van rental charges 5,500.00 pesos flat rate for a whole-day tour in CALABARZON of 5 passengers and each additional passenger added 500.00 pesos to the tour fare. Express a piecewise function to show to represent the van rental

You can view more similar questions or ask a new question.