1.

The sample mean and sample variance of five numbers are 4 and 6.5, respectively. What is the sum of the squares of these five numbers? (Round your answer to the nearest whole number.)

2.

In a class of 20 students, the scores on an exam are summarized in the following frequencyr table. Assume that all scores are whole numbers. 40 1: score E 50 T 50 *1 score E 60 - - _ 60 1: score E 7'0 _ - - _ 80 s score E 90 90 s score E 100 4 F0 I score E 80 1 What is the smallest possible value of the 5%trimmed mean of the scores? {Round your answer to three decimal places} 30.00- 25.00- 20.00- QuizScore 15.00- 10.00- 5.00- What is the value of the mean of the scores? O 25 10 O cannot be determined O 20 O 15 O Fi R e G Ai PCquizzes/84696/take In a class of 20 students, the scores on an exam are summarized in the following frequency table. Assume that all scores are whole numbers. Score Frequency 40