Mr. Li records the measures of the lengths of his students’ handprints. The lengths, in centimeters, are shown in the table.

A 7-column table with 3 rows. The first row contains entries 14.0, 11.5, 12.1, 16.2, 13.5, 14.3, 16.8. The second row contains entries 12.4, 13.7, 12., 14.7, 15.2, 11.9, 15.6. The third row contains entries 13.8, 14.2, 12.5, 15.0, 16.0, 13.1, 11.7.

If the class creates a histogram of the data in the table, how many students are in the range 12 cm to 13.9 cm?

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People end up tossing 12% of what they buy at the grocery store. assume this is the true population proportion and that you plan to take a sample survey of 540 grocery shoppers to further investigate their behavior. a. calculate the mean and the standard error for the sample proportion p. b. describe the sampling distribution of p in part a. draw a graph of this probability distribution with its mean and standard deviation. what is the probability that your survey will provide a sample proportion more than 15%? c. d. population proportion? what is the probability that your survey will provide a sample proportion within + 0.03 of the