Final answer:
To find the mean using the frequency table, multiply each value in the table by its corresponding frequency and divide the sum by the total number of values. To find the standard deviation, calculate the deviation from the mean, square each deviation, find the average of these squared deviations, and take the square root of the average.
Step-by-step explanation:
To find the mean using the frequency table, you need to multiply each value in the table by its corresponding frequency and then divide the sum of these products by the total number of values. For example, to find the mean of the data in the 0-8 column, you would multiply 2 (frequency) by 4 (midpoint of the interval) to get 8, and repeat this process for each value in the column. Then, you can find the mean of all the values calculated. To find the standard deviation, you need to first find the mean of the data, then calculate the deviation of each value from the mean, square each deviation, find the average of these squared deviations, and finally take the square root of the average. You can use a graphing calculator or computer to perform these calculations easily.