Mean Application Statistics

Which is the closest to what most people would call the "average?"

• mean

• median

• mode

• range

What is the mean of the following dataset?

23, 32, 22, 22, 28

• 22

• 25.4

• 32

• 26.3

Which of the following descriptive measure is not a statistic?

• sample mean x̅

• population mean µ

• sample standard deviation s

• sample variance s²

• 0.8413

• 0.9082

• 0.9332

• 0.9772

• 60.815

• 66.45

• 70.1

• 73.5

• 0.0228

• 0.1587

• 0.9772

• 0.8413

• 0.8413

• 0.9772

• 0.9332

• 0.9082

• 84.13

• 86.51

• 92.07

• 95.45

A fuel pump at a gasoline station doesn't always dispense the exact amount displayed on the meter. When the meter reads 1.00 L , the amount of fuel a certain pump dispenses is normally distributed with a mean of   1 L standard deviation of 0.05 L . Find the probability that amount dispensed in a random trial is less than or equal to 1.05 L.

• 0.16 %

• 16%

• 0.84%

• 84%

• 34.15

• 34.20

• 36.2

• 37.5