The random variable X is normally distributed. It is given that P(X 7)=0.2.

Find the standard deviation of X. Give your answer as a decimal, rounded to three significant figures.

34 cup. a serving of vegetable soup is 23 cup. the restaurant sold 20 servings of chicken noodle soup and 18 servings of vegetable soup. how many more cups of chicken noodle soup did they sell than cups of vegetable soup?

Which representation has a constant of variation of -2.5

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle