It means it is average give or take 5 points.
If the Z Score of a test is equal to zero then the raw score of the test is equal to the mean. Z Score = (Raw Score - Mean Score) / Standard Deviation
Weschsler Adult Intelligence Scale
z score = (test score - mean score)/SD z score = (87-81.1)/11.06z score = 5.9/11.06z score = .533You can use a z-score chart to calculate the probability from there.
score of 92
97
In order to know the z-score, given a test score, you must also know the mean and the standard deviation. Please restate the question.
sandra scores on the first 4 test were 87,92,76 and 89 what is the minimum score sandra nees to make on the fifth test so that her mean test score is at least 85? explain
90...depends on what her test scores were before.
men performances score sa test
it means your score fore a test
Very smart.
99