What is the z-score of x= 9, if it is 1.5 standard deviations to the left of the mean?
The value of the score will be -
z-score is the number of standard deviations from the mean value a data point is.
score is the number of standard deviations from the mean value a data point is. If a z-score is equivalent to zero, the corresponding score is the mean value. If the z-score is equal to +, it is one standard deviation above the mean value and if the z-score is equal to -, it is one standard deviation below the mean value.
By using the z-score it can be measured by how many standard deviations (), the value of x will lie below (left) or above (right) the mean () of the distribution. If the score is down the mean value, its corresponding Z score will be negative and if the score is above (right) the mean value, its corresponding z score will be positive
It is shown that the score, x= is standard deviations to the left of the mean.
The percent of fat calories that a person in America consumes each day is normally distributed with a mean of about 36 and a standard deviation of 10 . Suppose that one individual is randomly chosen. Letpercent of fat calories.
b. Find the probability that the percent of fat calories a person consumes is more than 40 . Graph the situation. Shade in the area to be determined.
c. Find the maximum number for the lower quarter of percent of fat calories. Sketch the graph and write the probability statement.
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