Normal Probabilities - Using Z Score
A normal distribution has a mean of u= 40 and o=10. if a
vertical line is drawn through the distribution at x= 55, what proportion of
the scores on the right side of the line?
A normal distribution has a u= 80 and o= 10. what is the
probability of randomly selecting a score greater than 90 from this
A normal distribution has a mean of u= 100 and o= 20. if one
score is randomly selected from the probability that the score will be less
than x= 84?