Statistics- Help

I need help with this problem for school. For the first one i got .3758 and second 1.6, but i don't think they are right. My calculations are off

It is known that about 20% of car insurance policies include emergency road service. Suppose we randomly select 10 car insurance policies.
What is the probability that at least one policy will have emergency road service?

0.6242

0.3758

0.8926

0.2684

0.1074

What is the expected number of policies having emergency road service?

3.5

8.0

1.6

2.0

5.0

  1. 👍 0
  2. 👎 0
  3. 👁 126
  1. You need to find P(0). Use a binomial probability table, with x = 0, n = 10, and p = .2. Subtract the value you find in the table from 1. This will be your probability.

    Second part: take n * p, where n = 10, and p = .2.

    I hope this will help.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. MATH

    A researcher wants to select a sample of 50 students from four local private high schools by performing stratified sampling. The enrollments are shown in the table. How many students at each school should be included in the​

  2. Criminology

    What is a police officer who works inside of a school called? (Select all that apply.) school resource officer school liaison officer school-based police office school enforcer I think its A, B?

  3. math help

    Jimmy spends ¾ of an hour getting ready for school. It takes 30 minutes to travel to school. If he needs to be at school at 9:00 am, what time should he get up?

  4. Algebra

    Use the above graph of f(x) to complete the following table for values of its inverse function, f^{-1}(x). The graph has a point on (2,2)the y-intercept is 4 the x intercept is 3 x =-4, 8, 0, -2, 2 f^{-1}(x) Note: You can earn

  1. 1 Credit for HS

    How to earn one credit for high school? Last year when the whole 6th grade visit our middle school (we have 2 middle schools in our district, my friends and other people are going to that middle school but since I'm not going to

  2. Maths

    I can't understand this math problem.... Please help me.... ------------------ Problem: In a boys' school, 5/8 of the boys play football and 4/7 play rugby. If every boy plays at least one of the two games, find the fraction of

  3. Physics

    At 1:00 p.m. a car, traveling at a constant velocity of 96 km/h toward the west, is 24 km to the west of our school. How far from the school will it be at 3:30 p.m.? Answer in units of km. I've been attempting this problem for at

  4. classroom instruction

    • Write a 200- to 300-word response describing how you might teach this concept to students in a lower elementary grade and to students in a middle school grade. i picked problem solving i have this so far. i guess for each

  1. MATH

    SUPPOSE IT TAKES NO MORE THAN 25 MIN FOR YOU TO GET TO SCHOOL. IF YOU HAVE TRAVELED FOR 13.5 MIN ALREADY, HOW MUCH LONGER, AT MOST, MIGHT YOU TAKE TO GET TO SCHOOL? PLS HELP ME. I NEED TO SOLVE AN INEQUALITY THAT MODELS THIS

  2. Health

    In your life, you will face some decisions that are so serious that you will want to consult others. These are decisions that will affect your life and your health. In the following questions, you are asked to apply the Great

  3. ENGLISH

    I'm doing an essay on whether brick and mortar school or online school is better for high school students, but I seriously can't decide. I have gone to both, and I think public school is much better. I feel biased though because

  4. English

    1. I'm in the third year of middle school. 2. I'm in the third year in middle school. (Which preposition do we have to use?) 3. My school is a boys-only school. 4. My school is a boys' school. 5. My school is girls-only school. 6.

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