Amarket researcher wants to estimate the unknown proportion of americans who use foreign cars. on the basis of a sample 75 residents in a big residential area, it appears that the point estimate of the proportion of residents with a foreign car is 0.45. an estimate of the standard error of this point estimate is 0.05745 0.00330 0.11260

Students at a high school were asked about their favorite outdoor activity. the results are shown in the two-way frequency table below. fishing camping canoeing skiing total boys 36 44 13 25 118 girls 34 37 22 20 113 total 70 81 35 45 231 select all the statements that are true based on the given table. more girls chose camping as their favorite outdoor activity than boys. more girls chose canoeing as their favorite outdoor activity than those who chose skiing. more boys chose skiing as their favorite outdoor activity than girls. there were more boys surveyed than girls. twice as many students chose canoeing as their favorite outdoor activity than those who chose fishing. more students chose camping as their favorite outdoor activity than the combined number of students who chose canoeing or skiing.

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

The weight of a full steel bead tire is approximately 800 grams, while a fighter wheel weighs only 700 grams. what is the weight of each tire in pounds?