Xia and hugh measured the lengths of two different ladybugs. xia's ladybug measured 3 millimeters and hugh's ladybug measured 2 mil. which number sentence best represents the difference in length of the two ladybugs, in centimeters? 0.5 - 0.3 = 0.2 0.5 - 0.3 = 0.02 0.05 - 0.03 = 0.02 0.05 - 0.03 = 0.2

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

What percent of 18 is 24? and plz explain thx.

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables