You have a statistics project due in your math class. as part of the project for one hour you count how many shoppers at your favorite store are between the ages of 21 and 25. your frequency table is below. use this table to answer (a-c)
ages. frequency
21, 22,23,24,25 2,5,3,7,10

a) find the mean of the data.
b) find the standard deviation of the data.
c) explain what the mean and standard deviation tell you about the data you collected.

Which description is represented by a discrete graph? kiley bought a platter for $19 and several matching bowls that were $8 each. what is the total cost before tax? the temperature at 9 a.m. was 83° f and is heating up at an average rate of 6°f per hour. what is the temperature x hours later? juan ate an egg with 78 calories and some cereal with 110 calories per serving for breakfast. what is the total amount of calories he consumed? a bottle contained 2,000 ml of liquid and is being poured out at an average rate of 300 ml per second. how much liquid is left in the bottle after x seconds?