In a survey, 3 of 4 students said the courts show "too much concern" for criminals. Find the probability that at most 3 out of 7 randomly selected students will agree with this statement. Round your answer to the nearest thousandth.

  1. 👍
  2. 👎
  3. 👁
  1. p(too much) = 3/4 = 0.75
    1-p = 0.25

    n = 7 , c = 0, 1 , 2, 3

    C(7,0) = 1 C(7,1)=7 C(7,2)=21 C(7,3)=35
    p(0) = 1*.75^0*.25^7 = .25^7=.00006
    P(1) = 7*.75^1*.25^6 = .00128
    P(2) = 21*.75^2*.25^5= .01153
    P(3) = 35*.75^3*.25^4= .05768
    add them :)

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Probability

    A school survey found that 9 out of 10 students like pizza. If three students are chosen at random with replacement, what is the probability that all three students like pizza? Answer with 3 decimal places.

  2. math

    Mrs. Bollo's second grade class of thirty students conducted a pet ownership survey. Results of the survey indicate that 8 students own a cat, 15 students own a dog, and 5 students own both a cat and a dog. How many of the

  3. civics

    what was the main concern with john dickenson's first draft of the articles of confederation? too little power for the courts a too small legislature too much power in the central government too much power the state governments

  4. math

    Mrs. Bollo's second grade class of thirty students conducted a pet ownership survey.results of the survey indicated that 8 students own a cat, 15 students own a dog and five students owned neither a cat or a dog. how many of the

  1. American Government

    what kind of state court system is set up so that trial courts hears those cases arising within its own district, circuit, or county, no matter what the subject might be? A. appellate courts B. geographically based courts C. state

  2. Math

    Carol wanted to know about how much time students in her school spent surfing the Internet. So she asked 15 of her friends to complete a survey that she had prepared. Will the results of Carol’s survey represent the population

  3. Statisitcs

    A large university campus has 60,000 students. The president of the students' association wants to conduct a survey of the students to determine their views on an increase in the student activity fee. She would like to acquire

  4. History

    Which type of courts exercise the broad power of judicial review? A:Article I courts B:Article II courts C:Article III courts*** D:Article IV courts Which jurisdiction does the Supreme Court exercise most often? A:Original

  1. Math

    David wants to survey his friends about their favorite animal. He distributes the following survey. Is this an appropriate survey for David to use? Dogs are - 68% Other 32% A - Yes, with this survey David can tell what his

  2. Math Survey

    James wants to find out the favorite movie of students in his school. Which method would give James the BEST results? A) survey every student on the football team B) survey every student that walks to school C) survey only

  3. History

    Because they were created by Congress to address the constitutional provisions of Article I, the special courts are also known as which of the following? A:legislative courts*** B:regular courts C:decisive courts D:constitutional

  4. Math

    The results of a survey are shown. In the survey, 28 students said their favorite dessert is ice cream. a. How many students were surveyed? b. How many students said their favorite dessert is pie? Favorite Dessert Pie: 15% Candy:

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