a)
To find: The z-score for the provided weights.
The z-scores are -2.4 and 1.6 respectively.
Given information:
Formula used:
The formula of the z-score is:
Calculation:
Consider, X be the random variable that is distributed normally.
The z-scores are calculated as:
The required z-scores are -2.4 and 1.6 respectively.
b)
To find: The probability that the weight of randomly selected box is at most 19.4 ounces.
The probability is 0.0082.
Calculation:
Consider, X be the random variable that is distributed normally.
The probability is calculated as:
The required probability is 0.0082
c)
To find: The probability that the weight of randomly selected box is between 19.4 and 20.4 ounces.
The probability is 0.937.
Calculation:
The probability is calculated as:
The required probability is 0.937.
Chapter 6 Solutions
Holt Mcdougal Larson Algebra 2: Student Edition 2012
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