Time spent using​ e-mail per session is normally​ distributed, with 14 minutes and 2 minutes. a. If you select a random sample of 50 sessions, what is the probability that the sample mean is between 13.8 and 14.2 ​minutes?
nothing ​(Round to three decimal places as​ needed.)

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

Agroup of randomly selected apple valley high school students were asked to pick their favorite gym class. the table below shows the results of the survey. there are 528 students at apple valley high school. gym class number of students racquet sports 1 team sports 9 track and field 17 bowling 13 based on the data, what is the most reasonable estimate for the number of students at apple valley high school whose favorite gym class is bowling? choose 1 answer a. 9 b. 13 c. 119 d. 172

What makes a trapezoid an isosceles trapezoid?