Ask questions and get helpful answers.

A shoe store knows that the purchase amount by its customers is a random variable that follows a normal distribution with a mean of $30 and a standard deviation of $9. What is the probability that a randomly selected customer will spend $30 or more at this store?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
2 answers
  1. Any customer who comes in is equally likely to spend over or under $30 at the store, since $30 is the mean of a normally distributed random variable.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  2. 1.45

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Answer this Question

Related Questions

Still need help?

You can ask a new question or browse existing questions.