Which grade of tire is providing better quality? explain. choose the correct answer below. a. grade y provides the better quality. while the mean of grade x is closer to the expected mean, the standard deviation of grade y is much smaller. b. grade x provides the better quality. while the mean of grade y is closer to the expected mean, the standard deviation of grade x is much smaller. c. grade y provides better quality because its mean is much smaller. d. grade x provides better quality because its mean is much smaller.

Fran would like to estimate the mean amount of time it takes people in her town to travel to work. the town's population is 150,000 and about 90,000 of those are working adults. which statements are true? select each correct answer. there is no way to infer the value of the mean. she must collect data for all 90,000 working adults and calculate the mean. a larger sample of working adults will provide a better estimate of the true mean than a smaller sample. the population of working adults is too large for using a sample to estimate the mean of the entire group. if she takes a random sample of the population of working adults in her town, the mean for that group is likely close to the mean for the entire group.

The length of triangle base is 26. a line, which is parallel to the base divides the triangle into two equal area parts. find the length of the segment between triangle legs.

Aplot of land is shaped like a quadrilateral. fences are built on the diagonal to divide the area into 4 sections. what is vi to the nearest tenth? gv = 6.55fv = 5.84vh = 3.27vi = ?