In 2013, approximately 1.6 million students took the Critical Reading portion of the SAT exam. The mean score, the modal score, and the
standard deviation were calculated to be 496, 430, and 115, respectively.
Which interval reflects 95% of the Critical Reading scores?
(1) 430 + 115
(3) 496 - 115
(2) 430 + 230
(4) 496 + 230

Renita analyzed two dot plots showing the snowfall during the winter months for city a and for city b. she found that the median snowfall is 5 inches less in city a than in city b. the mean snowfall is about 2 inches less in city a than in city b. which explains why there is a difference in the measures of center for the sets of data?

Volume of cylinder with a radius of 8cm and height of 25 cm

Find the value of the variable and the length of each secant segment.