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hodyreva [135]
3 years ago
14

Suppose the mean percentage in Algebra 2B is 70% and the standard deviation is 8% What percentage of students pass the class wit

h an 86% or better? Enter the value of the percentage without the percent sign.
Mathematics
1 answer:
AlekseyPX3 years ago
5 0

Answer:

Z-value is what we called the number of standard deviations from the mean.  62% is 8% one standard deviation to the left, or a Z-value of -1.  94 is 24% to the right of the mean, or 3 standard deviations for a z-value of three.  You can look on a Z-table to find the area between -1 and 3, which is .840 or 84%

Step-by-step explanation:

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