math

An electronics store receives a shipment of 20 graphing calculators, including 3 that are defective. Four of the calculators are selected to be sent to a local high school. A. How many selection can be made using the originial shipment?

  1. 👍 0
  2. 👎 0
  3. 👁 2,892
  1. If the only distinction between calculators is the defects then there are 4 possible selections, namely
    0, 1, 2, 3 defective calculators along with good ones for the balance.

    If the calculators bear serial numbers, i.e. they are considered distinct, then there are (20,4)=20!/(4!16!)=4845 selections.

    1. 👍 3
    2. 👎 2
  2. An electronics store receives a shipment of 20 graphing calculators, including 2 that are defective. Four of the calculators are selected to be sent to a local high school. A. How many selection can be made using the originial shipment?

    1. 👍 0
    2. 👎 0
  3. An electronics store receives a shipment of 20 graphing​ calculators, including 4 that are defective. Four of the calculators are selected to be sent to a local high school. How many of these selections will contain no defective​ calculators?

    1. 👍 0
    2. 👎 2

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    A sample of 4 different calculators is randomly selected from a group containing 47 that are defective and 29 that have no defects. What is the probability that all four of the calculators selected are defective? Round to four

  2. math

    in a shipment of 20 computers, 3 are defective three computers are randomly selected and tested. what is the probability that all 3 are defective if the first and second ones are not replaced after being tested. a. 1/760 b.1/1140

  3. Math

    An electronic store receives a shipment of 30 graphing calculators, including 6 that are defective. Four of these calculators are selected to be sent to a local high school. How many selections can be made? How many of this

  4. STATISTICS HELP!!!!!

    Bender Electronics buys keyboards for its computers from another company. The keyboards are received in shipments of 175 boxes, each box containing 30 keyboards. The quality control department at Bender Electronics first randomly

  1. Math

    In a shipment of 400 parts 14 are found to be defective how many defective parts should be expected in a shipment of 1000? 125

  2. math

    An arts supply store has 28 pounds of modeling clay to ship to a client. Each packing box can contain no more than 34 pound of modeling clay. Which statement is true? A. The store will need exactly 21 boxes for the shipment. B.

  3. Math

    1. What is the experimental probability of rolling a 3? A. 0.11**** B. 0.22 C. 0.30 D. 0.27 2. A quality control expert randomly samples 60 pairs of sunglasses and finds 5 defective pairs. Predict how many defective pairs will be

  4. Chemistry

    A store receives a shipment of defective balloons. Each has a tiny pinhole of the same size. If one balloon is filled with helium and another is filled with air to the same volume and pressure, which balloon will deflate faster

  1. math

    A shipment of 9 printers contains 4 that are defective. Find the probability that a sample of size 4​, drawn from the​ 9, will not contain a defective printer . the probability is ?

  2. stastics

    If 1.5% of the bolts made by an automotive factory are defective, what is the probability that in a shipment of 200 bolts, there are 6 defective bolts? Place your answer, rounded to four decimal places, in the blank.

  3. Math

    In a shipment of 850 widgets, 32 are found to be defective. At this rate, how many defective widgets could be expected in 22,000 widgets? Round to the nearest whole number.

  4. Math

    The cost C, in dollars, to produce graphing calculators is given by the function C(x)=57+4500, where x is the number of calculators produced. How many calculators can be produced if the cost is limited to $129,900?

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