Avariety of pure-breeding snapdragons produces a tall plant with green seeds (wwss). a second variety of pure-breeding snapdragons produce a short plant with white seeds (wwss). the two varieties are crossed, and the resulting seeds are collected. all of the seeds are green and when planted, they produce all tall plants (wwss). these tall f1 plants are allowed to self-fertilize. the results for seeds and plant height in the f2 generations are as follows. what is the х2 value, and the degrees of freedom for this experiment? f2 plant phenotypeobserved # green seed, tall565 white seed, tall180 green seed, short180 white seed, short75 total1000 a. х2 = 52.6, df = 1 b. х2 = 52.6, df = 4 c. х2 = 52.6, df = 3 d. х2 = 3.1, df = 4 e. х2 = 3.1, df = 3 f. х2 = 3.1, df = 1

Schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  notbe written on computer in this day and age.many schools now have a 1-to-1 computer policy, and many districts and states in the united states have mandated computers or ipads across the state for every student,  including los angeles, the second largest school district in the country.but the thing is, when they tried it in la, it wasn't the success they hoped for. that's because the tablets weren't used as much as they expected. rather, it appeared there was a gap between the digital native's love of technology and their use of it in the classroom.this conflicted relationship with computers is also underscored by much of the literature on education. it is also highlighted in professional development and conferences such as  edutech.