Σ(x) = 63, σ(x2) = 1073, σ(y) = 620, σ(y2) = 85,258, and σ(x y) = 9,276. compute r. (enter a number. round your answer to three decimal places.) n=5

Arestaurant gives out a scratch-off card to every customer. the probability that a customer will win a prize from a scratch-off card is 25%. design and conduct a simulation using random numbers to find the experimental probability that a customer will need more than 3 cards in order to win a prize. justify the model for your simulation, and conduct at least 10 trials.

Use the distributive law to multiply. 3(4x + 5y + 6)

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?