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3. The distribution of SAT scores on the math section is
3. The distribution of SAT scores on the math section is normal with u=500 and o=100.
JA: The Math Tutor can help you get an A on your homework or ace your next test. Tell me more about what you need help with so we can help you best.
Customer: A.) sketch the distribution of SAT scores, draw a vertical line through the mean and label its Xvalue and zscore. B.) Using your unit normal table calculate the SAT score at the 85th percentile. C.) Using your unit normal table calculate the SAT score at the 25th percentile. D.) What SAT score separates the top 20% of the distribution from the rest?
JA: Is there anything else the Math Tutor should be aware of?
Customer: 2. Info from the Department of motor vehicles indicates that the average age of licensed drivers is u=39.7 years with a standard deviation o=12.5 years. assume the distribution of drivers ages is approximately normal. A.) sketch the distribution of drivers ages, draw a vertical line through the curve at the mean and label its Xvalue (score) and the zscore. B.) Using your unit normal table calculate the probability of randomly selecting a licensed driver who is older than 50 years old (X=50). C.) Using your unit normal table calculate the probability of randomly selecting a licensed driver who is younger than 30 years old (X=30). D. Using your unit normal table calculate the probability of randomly selecting a licensed driver who is between 35 (X=35) and 45 years old (X=45).
Manal can you please assist
Manal can you please assist
I need help with these questions, attached in the picture.
I need help with these questions, attached in the picture.
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