In a class of 30 ​students, on​ average, 6 will be​ left-handed. If a class includes 27 ​"lefties", estimate how many students are in the class.

  1. 👍
  2. 👎
  3. 👁
  1. 30/6 = x/27
    6x = 810

    solve for x

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. statistics

    The probability that a randomly selected person in the United States is left-handed is about 0.14. (a) Among the 28 students in Mr. Miller’s class, 8 are left-handed. Could this have happened by chance alone? Describe how you

  2. Statistics

    18. The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15. Given a class with 25 students, what is the probability that the class' average IQ score is between 85 and

  3. math

    In a class of 60 ​students, on​ average, 8 will be​ left-handed. If a class includes 12 ​"lefties", estimate how many students are in the class.

  4. Math

    When a class took a math test, 15% of the class failed, 25% made some mistakes (but didn’t fail), and 24 students got perfect scores. How many students were in the class?

  1. basic statistics for the behavioral sciences

    there are 80 students enrolled in statistics. (a)you and 11 other earned the same score. what percent of the class received your score? (b)forty percent of the class received a grade of C. how many students received a C? (c) only

  2. Geometry

    When Ms Shreve randomly selects a student in her class, she has 1/3 probability of selecting a boy. A: If her class has 36 students, how many boys are in her class? B: if there are 11 boys in her class, how many girls are in her

  3. Math

    Mrs. Murphy separates her class into groups of 4 students each, 1 student is left over. If she separates her class into groups of 5 students each, 2 students are left over. What is the least number of students the class could

  4. Algebra

    The incomplete table below summarizes the number of left-handed students and right-handed students by gender for the eighth grade students at Keisel Middle School. There are 6 times as many right-handed female students as there

  1. programming

    Example Develop a pseudocode algorithm for a program that accepts each of the average marks of 10 students in a class and computes the sum and the average mark of the class. The program should display the average mark of the

  2. math

    Car Insurance Use the histogram below to answer the following questions. a)How many students were surveyed? b)What are the lower and upper class limits of the first and second classes? c)How many students have an annual car

  3. Math

    More than 18'students in an algebra class pass the first test. This is about three-fifths of the class. How many students are in the class? How do you know?

  4. math

    In a local school 34 students are enrolled in a math class, 85 are enrolled in an english class, 58 are enrolled in an art class, and 54 are enrolled in a history class. Construct a pie chart with this data. What is the central

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