Which of the following may be used to check the conditions needed to perform a two sample test for mean (independent samples)?

i. both populations are approximately normally distributed

ii. both sample sizes greater than 30

iii. population of differences is approximately normally distributed

a) i or iii

b) ii or iii

c) i or ii

d) i, ii, or iii

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.

Guys i need ! graded assignment grade 8 checkpoint 2, part 2 answer the questions below. when you are finished, submit this assignment to your teacher by the due date for full credit. total score: of 9 points (score for question 1: of 4 points) 1. the cost of renting a car for a day is $0.50 per mile plus a $15 flat fee. (a) write an equation to represent this relationship. let x be the number of miles driven and y be the total cost for the day. (b) what does the graph of this equation form on a coordinate plane? explain. (c) what is the slope and the y-intercept of the graph of the relationship? explain.

100 points? me its important ‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️