radomes.openskiesproject.org
bcardoso07 bcardoso07
  • 31-01-2017
  • Mathematics
Answered

The average score on a standardized test is 500 points with a standard deviation of 50 points. What is the probability that a student scores more than 400 on the standardized test?

Verified Answer :

casltiel2
casltiel2 casltiel2
  • 31-01-2017

Z = (score-mean)/SD

Calculate Z and find its proportion in table in the back of your stats book labeled "areas under normal distribution". Convert proportion to number of students.

Answer Link

Related Questions

The gas sample has now returned to its original state of 100 atm 200 C and 100 L What will the pressure become if the temperature of the gas is raised to 2000 C
2 percent of the value of 150000
A sewing club used 48 feet of fabric to make 8 blankets At this rate how many blankets can be made from 12 feet of fabric
Which of the following best represents a civilization
which of the following would you measure using a graduated cylinder a volume b mass c length d temperature
Crystals mud mask costs 23 for a 045 oz jar She found the same mud mask online for 72 What is the size of the jar Crystal found online
Identify the correct sentence a He is the more friendlier of the two gorillas b He is the most friendlier of the two gorillas c He is the most friendliest of th
What is the greatest common factor of 4k 18k4 and 12
what is value of digit 4 in 1848 meters in decimal and fraction
Solve by completing the square X squared 6x80