Math
below are the data collected from two random samples of 500 american adults on the number of hours they spend doing leisure and sports activities per day (rounded to the nearest hour):

dan concludes that adults spend a mean of 3 hours each day doing leisure and sports activities. bret thinks the mean is 4 hours. who is correct—dan or bret? explain your answer in two or three sentences. make sure to use facts to support your answer.

Ok so lets find the total amount of hours spent by all the adults according to Sample A: 1 x 70 + 2 x 90 + 3 x 135 + 4 x 140 + 5 x 65 = 70 + 180 + 405 + 560 + 325 = 1540 So, according to Sample A, the average hours spent each day by one adult doing leisure and sports is 1540/500 = 3.08. Now let's find the total amount of hours spent by all the adults according to Sample B: 1 x 80 + 2 x 80 + 3 x 130 + 4 x 135 + 5bx 75 = 80 + 160 + 390 + 375 = 1545 So, according to Sample B, the average hours spent each day by one adult doing leisure and sports is 1545 / 500 = 3.09. So, Dan is absolutely correct by assuming that adults spend a mean of 3 hours each day doing leisure and sport activities.

sry if it has spelling errors or i dont make sense

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x