Sunday

August 31, 2014

August 31, 2014

Posted by **Patrick** on Tuesday, August 11, 2009 at 12:47pm.

A. What percent of the data is between 12.25 and 12.75?

ANSWER: 51.6%

B. Find the interval about the mean within wich 45% of the data lie.

ANSWER: 12.28-12.72

C. Find the probability of that a value selected at random from this data is between 11.67 and 13.33.

ANSWER: 97.9%

Are these correct?

- Advanced Math -
**MathMate**, Tuesday, August 11, 2009 at 5:27pmYes, they are correct.

I find minor differences in the last digits, probably due to round-off or interpolation errors.

**Related Questions**

Math-confused...plz help - I. Use Chebyshev’s theorem to find what percent of ...

Math-Statistics - I. Use Chebyshev’s theorem to find what percent of the values ...

Math - I. Use Chebyshev’s theorem to find what percent of the values will fall ...

Stats - I. Use Chebyshev’s theorem to find what percent of the values will fall ...

Pre calc - A set of 500 values has a normal distribution. The mean of the data ...

MATH - Which of the following normal distributions has the smallest spread? A. A...

Math (Statistic) - Considered the sampling distribution of a sample mean ...

math - Using the data in the table, calculate the mean, range, variance, and ...

math - Using the data in the table, calculate the mean, range, variance, and ...

math - Using the data in the table, calculate the mean, range, variance, and ...