Chapter 6: Q. 46 (page 387)
How would you represent the area to the left of three in a probability statement?
Short Answer
The probability statement of the area to the left of three can be represented as
Chapter 6: Q. 46 (page 387)
How would you represent the area to the left of three in a probability statement?
The probability statement of the area to the left of three can be represented as
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Get started for freeSuppose X ~ N(9, 3). What is the z-score of x = 9?
If the area to the left of is , then what is the area to the right?
Is equal to ? Why?
In a normal distribution, x = โ2 and z = 6. This tells you that x = โ2 is ____ standard deviations to the ____ (right or 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.
a. ----------
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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