The heights of 213 students is normally distributed with a mean of 170 cm and a standard deviation of 8 cm. Approximately how many students would be between 170 cm and 178 cm?

A bottle filling machine fills 20,000 bottles a day with a standard deviation of 2000. If the machine is studied for 260 days, approximately how many of those days are under 18,000 bottles are filled?

The lifespans of lions in a particular zoo are normally distributed. The average lion lives 10 years; the standard deviation is 1.4 years. Using the empirical rule, find the percentage of lions living between 8.6 and 11.4 years.

Find the correlation coefficient for the scatterplot of the given data. Interpret the result.

How many male math teachers were there in 2006?

A large sample of patients had their systolic blood pressure measured. The mean blood pressure was 125 mm of mercury and the standard deviation was 10 mm. Find percentage of patients whose blood pressure being between 115 and 145

Find the equation for the line of best fit for the given data. (+5 points: If x represents a person's age and y represents how much they spent on online purchases in a month, interpret the slope)

Name the correlation in the image

Name the correlation in the image

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many chapters would be in a book with 140 pages

Find the correlation coefficient for the scatterplot of the given data. Interpret the result.

Find the equation for the line of best fit for the given data.