Statistics

You're drawing from a random variable that is normally distributed X ~ N(0,, once per day. What is the expected number of days that it takes to draw a value that's higher that 2?

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  • You're drawing from a random variable that is normally distributed X ~ N(0,, once per day. What is the expected number of days that it takes to draw a value that's higher that 2?
  • Consider drawing from a random variable with a standard normal distribution. How many days do you expect it would take for you to draw a value exceeding 2?
  • Let's say you draw a value randomly each day from a normal distribution, with a mean of 0 and a standard deviation of How many days, on average, do you think it would take to obtain a value greater than 2?
  • Assuming you are randomly drawing values each day from a normally distributed variable with a mean of 0 and a standard deviation of 1, what is the expected number of days it would take for you to draw a value greater than 2?
  • If you randomly draw from a normal distribution with a mean of 0 and a standard deviation of 1 once per day, how many days do you think it would take to draw a value greater than 2?
  • When drawing from a normal distribution with a mean of 0 and a standard deviation of 1 once per day, how many days do you expect it would take to draw a value higher than 2?
  • Suppose you draw a value each day at random from a normal distribution with a mean of 0 and a standard deviation of How many days should it take on average for you to draw a value that's greater than 2?
  • Randomly drawing from a normally distributed variable with a mean of 0 and a standard deviation of 1 once per day, what is the expected number of days it would take for you to draw a value that's higher than 2?
  • If you draw once per day from a normal distribution with a mean of 0 and a standard deviation of 1, what is the average number of days it would take to draw a value greater than 2?
  • How many days, on average, do you expect it would take to draw a value greater than 2 if you were randomly drawing from a normal distribution with a mean of 0 and a standard deviation of 1 once per day?
  • If you were to draw from a normal distribution with a mean of 0 and a standard deviation of 1, how many days on average would it take for you to draw a value greater than 2?

Interview question asked to Data Scientists interviewing at Yandex, Quora, Hopper and others: You're drawing from a random variable that is normally distributed X ~ N(0,, once per day. What is the expected number of days that it takes to draw a value that's higher that 2?.