Different hotels in a certain area are randomly selected, and their ratings and prices were obtained online. using technology, with x representing the ratings and y representing price, we find that the regression equation has a slope of 130 and a y-intercept of 350. complete parts (a) and (b) below. a. what is the equation of the regression line? select the correct choice below and fill in the answer boxes to complete your choice. o a ○ c. b. what does the symbol y represent? o a. the symbol y represents the average price of hotels in the area. o b. the symbol ý represents the amount that price increases with a 1-point increase in rating. o. the symbol y represents the predicted value of price 0 d. the symbol y represents the expected price when the hotel's rating is 0

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

Fiona has to plot a histogram of the given data

What is the surface area of a cube with the volume of 729 ft?