After taking six, 5-point, quizzes during the semester, both Jack and Elaine have an average quiz score of 4.00. However, the standard deviation of Jack’s scores was .96 and Elaine’s standard deviation was .21. What does it mean that Jack and Elaine had the same quiz average but very different standard deviations?

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Igor stravinsky tires sells approximately 3,760,000 car tires and 1,200,000 truck tires each year. about 47,000,000 care tires and 26,000,00 truck tires are sold each year in the united states. what is stravinsky's market share in each of these two markets (cars and trucks)?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?