Statistics

The average daily high temperatures in Lawton are approximately normally distributed with a mean of 58 degrees and a standard deviation of 12 degrees. Find the probabilities below:

The probability that the high would not exceed 65 degrees on any one day.


The probability that the average high for 7 randomly chosen days would be over 65 degrees.

  1. 👍 0
  2. 👎 0
  3. 👁 102
  1. 1. Z = (score-mean)/SD

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability related to the Z score.

    2. Z = (score-mean)/SEm

    SEm = SD/√n

    Use same table.

    1. 👍 0
    2. 👎 0
    posted by PsyDAG

Respond to this Question

First Name

Your Response

Similar Questions

  1. Leah

    During a week in December on anchorage, Alaska the daily high temperatures were 20,18,-10,15,-15,25, and 11. Write an expression to find the average daily high temperature during that week.

    asked by Math on April 3, 2011
  2. math

    a jeepney bound for Lawton leaves Carriedo at 11:57 am with an average rate of 40kph at 12 noon Mr Sammy leaves carriedo at rate 65kph. If the distance from Carriedo to Lawton is 7km at what time the jeepney and Mr Sammy reach

    asked by al sah him on August 14, 2015
  3. Math

    In one three day weekend, the daily high temperature had a median value of 73. The mean temperature was 74.33 and the range of temperatures was 14. What were the three weekend daily high temperatures?

    asked by Todd on December 4, 2009
  4. Math

    The daily temperature is decreasing at a rate of 2 degrees Fahrenheit T represent the daily high temperature now right then expression for the high temperature in five days the current at high temperatures need to address for

    asked by John on October 23, 2016
  5. math probability

    Daytime high temperatures in New York in February are normally distributed with an average of 30.2º and a standard deviation of 8.5º. Estimate the probability that the temperature on a given day in February is 39º or higher.

    asked by Jamar on March 4, 2014
  6. math

    Daytime high temperatures in New York in February are normally distributed with an average of 30.2º and a standard deviation of 8.5º. Estimate the probability that the temperature on a given day in February is 22º or lower.

    asked by Anonymous on January 22, 2014
  7. Pleaseeeeeeeee Help me

    Project: Data Analysis The following chart lists the average low, average high, record low, and record high temperatures for the month of April in Denver, Colorado. Day Average Low Average High Record Low Record High April 1 32°F

    asked by Morgan S on January 2, 2013
  8. statistics

    1)According to past record the average daily sales for a sporting goods store was $3456.00. After a new advertising campaign, the manager wants to see if the average daily sales have changed. A random sample of 20 days gives a

    asked by Bobby on December 6, 2014
  9. Urgent!

    Project: Data Analysis The following chart lists the average low, average high, record low, and record high temperatures for the month of April in Denver, Colorado. Day Average Low Average High Record Low Record High April 1 32°F

    asked by Morgan S on December 27, 2012
  10. Help Somebody please.

    Project: Data Analysis The following chart lists the average low, average high, record low, and record high temperatures for the month of April in Denver, Colorado. Day Average Low Average High Record Low Record High April 1 32°F

    asked by Morgan S on December 28, 2012

More Similar Questions