In a normal distribution what percent of values fall within one standard deviation of the mean?

What are the extremes of the following proportion 3/15 = 12/60

A survey of 250 people showed that 220 people favored a candidate for re - election. What percent of the people surveyed favored the candidate?

Approximately how many centiliters are in 3 quarts? Round answer to the nearest unit. 1 cup = 0.237 liters a = 29 centiliters b = 71 centiliters c = 285 centiliters d = 316 centiliters

When you put together unequal groups, can you only add.

5 gallons of gas last 100 miles. How many miles per gallon

Kiri and Peter share some sweets in the ratio 6 : 7. What fraction of the sweets does Kiri receive?

Which expressions are equivalent to - 1/3 + (-5/6) + (-7/3) ? Select each correct answer. - (1/3+5/6) + (-7/3) -5/6 + (-1/3) + (-7/3) -1/3 - (5/6-7/3) -1/3 + (-7/3) + (-5/6)

Mom pays $116 each week for groceries plus $28 for each fast-food dinner. She has $200 to spend each week for all the family's food.

Which statement allows for us to conclude that line m and line n are parallel?

Martha changed 350 US dollars into 385 Australian dollars. How many Australian dollars did she receive for each US dollar?