# Question: The following data represent the length of eruption for a

The following data represent the length of eruption for a random sample of eruptions at the Old Faithful

geyser in Calistoga, California.

(a) Determine the sample standard deviation length of eruption. Express your answer rounded to the nearest whole number.

(b) On the basis of the histogram drawn in Section 3.1, Problem 28, comment on the appropriateness of using the Empirical Rule to make any general statements about the length of eruptions.

(c) Use the Empirical Rule to determine the percentage of eruptions that last between 92 and 116 seconds.

(d) Determine the actual percentage of eruptions that last between 92 and 116 seconds, inclusive.

(e) Use the Empirical Rule to determine the percentage of eruptions that last less than 98 seconds.

(f) Determine the actual percentage of eruptions that last less than 98 seconds.

geyser in Calistoga, California.

(a) Determine the sample standard deviation length of eruption. Express your answer rounded to the nearest whole number.

(b) On the basis of the histogram drawn in Section 3.1, Problem 28, comment on the appropriateness of using the Empirical Rule to make any general statements about the length of eruptions.

(c) Use the Empirical Rule to determine the percentage of eruptions that last between 92 and 116 seconds.

(d) Determine the actual percentage of eruptions that last between 92 and 116 seconds, inclusive.

(e) Use the Empirical Rule to determine the percentage of eruptions that last less than 98 seconds.

(f) Determine the actual percentage of eruptions that last less than 98 seconds.

## Relevant Questions

Suppose that you are in the market to purchase a car. With gas prices on the rise, you have narrowed it down to two choices and will let gas mileage be the deciding factor. You decide to conduct a little experiment in which ...SAT Math scores have a bell-shaped distribution with a mean of 515 and a standard deviation of 114. (a) What percentage of SAT scores is between 401 and 629? (b) What percentage of SAT scores is less than 401 or greater than ...The standard deviation of batting averages of all teams in the American League is 0.008. The standard deviation of all players in the American League is 0.02154. Why is there less variability in team batting averages? In one of Sullivanâ€™s statistics sections, the standard deviation of the heights of all students was 3.9 inches. The standard deviation of the heights of males was 3.4 inches and the standard deviation of females was 3.3 ...The following data represent SAT Mathematics scores for 2010. SAT Math Score .... Number 200-299 ....... 36,305 300-399 ....... 193,968 400-499 ....... 459,010 500-599 ....... 467,855 600-699 ...... 286,518 700-800 ...Post your question