Ask questions and get helpful responses.

algebra

The diameter of an electric cable is normally distributed, with a mean of 0.8 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.82 inch? (Give the answer to four decimal places.)

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. 0.82 - 0.8 = 0.02

    0.02/0.01 = 2 standard deviations

    You check a normal distribution table (unless you were provided with the value for 2 standard deviation already)

    You get : Greater than 2 standard deviation = 1 - 0.9772 = 0.0228

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. The diameter of an electric cable is normally distributed, with a mean of 0.8 inch and a standard deviation of 0.01 inch. What is the probability that the diameter will exceed 0.81 inch

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Still need help? You can ask a new question.