Probability and statistics

There is an equally likely chance that a falling dart will land anywhere on the rug below. The following system is used to find the number of points the player wins. What is the expected value for the number of points
won?Black = 40
points
Gray = 20 points
White = 0 points

  1. 👍
  2. 👎
  3. 👁
  1. 3 colours, so prob each colour = 1/3

    expected number of points
    = (1/3)(40) + (1/3)(20) + (1/3)(0)
    = 20

    1. 👍
    2. 👎
  2. What they said

    1. 👍
    2. 👎
  3. 24

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. phyics

    A dart leaves the barrel of a blowgun at a speed v. The length of the blowgun barrel is L. Assume that the acceleration of the dart in the barrel is uniform. Find a time that the dart moves inside the barrel. Express your answer

  2. Math

    Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% chance that the land has oil. Jason decides to test the land for oil. He buys a kit that claims to have an 80% accuracy rate of

  3. algebra

    Cynthia Besch wants to buy a rug for a room that is 18 ft wide and 32 ft long. She wants to leave a uniform strip of floor around the rug. She can afford to buy 312 square feet of carpeting. What dimensions should the rug​ have?

  4. math

    A rectangular rug is 12.5 feet long and 10 feet wide. The rug needs to be reduced by a factor of es026-1.jpg to be placed near a door. What is the area of the reduced rug in square feet?

  1. math

    Garrett throws a dart at a circular dart board. The dart board has a radius of 15 inches, and the bull’s eye in the center of the dart board has a radius of 2 inches. What is the probability that a dart thrown at random within

  2. college algebra

    Cynthia Besch wants to buy a rug for a room that is 23 ft wide and 29 ft long. She wants to leave a uniform strip of floor around the rug. She can afford to buy 475 square feet of carpeting. What dimensions should the rug​ have?

  3. Algebra

    Cynthia wants to buy a rug for a room that is 25 ft wide and 34 ft long. She wants to leave a uniform strip of floor around the rug. She can afford to buy 630 square feet of carpeting. What dimensions should the rug have?

  4. Math

    What is the probability that a randomly thrown dart hits a shaded region, given that the dart lands within the rectangle? All of the circles are congruent, and the diameter of each circle is 6 cm.

  1. Math

    Garrett throws a dart at a circular dart board. The dart board has a radius, and the bull's eye in the center of the dart board has a radius of 6 inches. What is the probability that a dart thrown at random within the dartboard

  2. Physics

    You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. You shoot the gun straight up, and it takes 3.8 s for the dart to land back at the barrel.

  3. phyics

    A dart leaves the barrel of a blowgun at a speed v. The length of the blowgun barrel is L. Assume that the acceleration of the dart in the barrel is uniform. a) Show that the dart moves inside the barrel for a time of 2L/v Express

  4. Math

    Rosa quilts a square rug that has an area of 400 square inches. What is the length of each side of the rug? a 14 b 16 c 18 d 20 im so cufuzzed. i need le help

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