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1 answer:
Answer:
The expression for two times the difference of eight and d. is
Step-by-step explanation:
To Find:
Write an expression for two times the difference of eight and d.
Solution:
Difference of 8 and d = ( 8 - d )
So One Time Difference of 8 and d = 1× ( 8 - d )
∴ Two Times Difference of 8 and d = 2× ( 8 - d )
The expression for two times the difference of eight and d. is
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If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
Referring to a standard normal distribution table, and using z = 0.66, we find:
Therefore
The answer is: 0.2546
The z-score for 173 pounds is given by:
Referring to a standard normal distribution table, and using z = 0.66, we find:
Therefore
The answer is: 0.2546