Suppose that quiz scores in a beginning statistics class have a mean of 7.6 with a standard deviation of 0.50.5. Using Chebyshev's Theorem, what is the minimum percentage of quiz scores between 6.1 and 9.1? Round your answer to one decimal place.
6.1 = 7.6 - 3*0.5 that is 3 standard deviations less than the
mean.
9.1 = 7.6 + 3*0.5 that is 3 standard deviations more than the
mean.
According to chebyshev's theorem, at least 1 - 1/k2 of the observations lies within k standard deviations of the mean.
Therefore at least 1 - 1/32 = 8/9 that is 88.9% of the observations lies within 3 standard deviations of the mean.
Suppose that quiz scores in a beginning statistics class have a mean of 7.6 with a...
Suppose that quiz scores in a beginning statistics class have a mean of 7.5 with a standard deviation of 0.4. Using Chebyshev's Theorem, what is the minimum percentage of quiz scores between 6.3 and 8.7 ? Round your answer to one decimal place.
Suppose that quiz scores in a beginning statistics class have a mean of 7.6 with a standard deviation of 0.5. Using Chebyshev's Theorem, state the range in which at least 88.9% of the data will reside. Please do not round your answers.
Suppose that quiz scores in a beginning statistics class have a mean of 7.2 with a standard deviation of 0.4. Using Chebyshev's Theorem, state the range in which at least 75% of the data will reside. Please do not round your answers.
suppose that prices of a gallon of milk at various stores in one town have a mean of $3.71$3.71 with a standard deviation of $0.11$0.11. Using Chebyshev's Theorem, what is the minimum percentage of stores that sell a gallon of milk for between $3.49$3.49 and $3.93$3.93? Round your answer to one decimal place.
Suppose that salaries for recent graduates of one university have a mean of $24,800 with a standard deviation of $1100. Using Chebyshev's Theorem, what is the minimum percentage of recent graduates who have salaries between $21,500 and $28,100?
beginning sta Correct Inc Suppose that salaries for recent graduates of one university have a mean of $24.700 with a standard deviation of $1150. using Chebyshevs Theorem, what is the minimum percentage of recent graduates who have salaries between $22.400 and $27,000 Round your answer to one decimal place Consider the following sets of sample data: A 20,073,21,579 21,667.20,093,21,128,22,043, 21.465 20,000. 21,773,21,875,21,840, 22,139,22,239, 21,103 B: $1.42. $2.00.$1.78 S1.30,S1.30, $1.17, $1.38, $1.13, $1.11. $2.53, $2.28
Suppose that scores on a particular test are normally distributed with a mean of 130 and a standard deviation of 19. What is the minimum score needed to be in the top 20% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place. ?
Suppose that scores on a particular test are normally distributed with a mean of 140 and a standard deviation of 16. What is the minimum score needed to be in the top 20% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place.
Suppose that scores on a particular test are normally distributed with a mean of 130 and a standard deviation of 20. What is the minimum score needed to be in the top 20% of the scores on the test? Carry your intermediate computations to at least four decimal places, and round your answer to one decimal place. |x 6 ?
A certain standardized test's math scores have a bell-shaped distribution with a mean of 530 and a standard deviation of 110. Complete parts (a) through (c). (a) What percentage of standardized test scores is between 200 and 860? % (Round to one decimal place as needed.) (b) What percentage of standardized test scores is less than 200 or greater than 860? % (Round to one decimal place as needed.) (c) What percentage of standardized test scores is greater than 750?...