On a 5 question multiple choice test there are five possible answers, of which one is correct. Find the mean of the number of questions students guess correctly. Find the standard error of the number of questions guess correctly.

How do you figure out which team is closer?

what proportion of 112 is 21?

A survey samples 2000 people. What is the margin of error for the survey? Round to two places.

A recent survey reports that 22% of students take the bus to campus. If 660 students commute to campusby bus, how many students participated in the study?

In a sample of 169 students, 16 said they have donated blood. What percent of the students have donated blood?

The mean of 14 numbers in a data set is 43. A new number is included in the data set. It changes the mean to 44. What is the new number? Record the result below accurate to two decimal places.

 A national forest service wanted to estimate the number of deer in a particular national park. They cotton tag 71 deer and release him back into the park. Later they selected a sample of 272 deer. Of the 272 dear, 17 were tagged, assuming that the portion of tag deer and the sample holds for all deer in the forest, what is the best estimate of the number of deer in the park? 

The low temperatures in the Town of Rigby for 5 conservative days were -12, -17,-11,-12,-18 what was the mean low temperature for five days

What percent of students earned a passing grade of 70 or higher? TEST SCORES: 50,60,61,63,66,67,73,82,89,92