You work at a T-shirt printing business. Of the 2,800 T-shirts shipped, 396 have a defect. What is the experimental probability that a T-shirt has a defect? Write your answer as a percent, to the nearest tenth of a percent. a 15.3% b 19.4% c 11.7% b 14.1%

Arandom sample of 240 park users were asked if they go to the park more often on weekdays or on the weekend. the results are shown in the table. weekdays weekend male 50 10 female 150 30 based on the data in the table, select correct or incorrect for each statement. correct incorrect the males go to the park more often on the weekend. the females go to the park more often on weekdays. for the participants in the survey, gender affects which days of the week a person goes to the park.

Nine more than four times a number is the same as one less than twice the number. find the number?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).