Construct a frequency table of class interval of 10 from the given data and find the mean. 23, 5, 17, 28, 39, 52, 16, 22, 69, 75,
41, 33, 9, 49, 34, 59, 72, 46, 65, 58,
60, 48, ,64, 32, 50, 73, 57, 51, 63, 36

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1