The ages of two groups of karate students are shown in the following dot plots:

a; group a has greater variability in the data.
b; group a has less variability in the data.
c; group b has a lower range.
d; group b has a lower mean.

the mean absolute deviation (mad) for group a is 2.07 and the mad for group b is 5.51. which of the following observations can be made using these data?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?