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Suppose a random sample of 84 men has a mean foot length of 26.9 cm with a standard deviation of 2.1 cm. what is an 95% confidence interval for this data? question 3 options: question 24 options: 28.58 to 25.22 21.52 to 32.28 24.8 to 29 24.21 to 29.59

Earth's atmosphere is unique among the planets and is able to support life because it contains a large amount of a) oxygen b) helium c) methane d) carbon dioxide

What gpa will you get if you make all a's and 1 b?