In a local university, 40% of the students live in the dormitories. a random sample of 80 students is selected for a particular study. the probability that the sample proportion (the proportion living in the dormitories) is between 0.30 and 0.50 is

Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60