Question 14 of 25 Which expression entered into a graphing calculator will return the probability
that 350 or fewer heads come up when flipping a coin 500 times?
A. binomcdf(350, 500,0.5)
B. binomcdf(500, 350, 0.5)
C. binomcdf(350, 0.5, 500)
O D. binomcdf(500, 0.5, 350)

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours

I'm confused on this could anyone me and show me what i need to do to solve it.