Bar Graphs Check

{"questions":[{"content":"A bar graph shows apples 7, pears 4, and oranges 6. Which numerical value belongs to pears?<br>[[input-1]]","widgets":{"input-1":{"type":"input","answer":"4"}},"hints":["Read the pears category."],"explanation":"The pears bar has a value of 4."},{"content":"Using apples 7, pears 4, and oranges 6, how many fruits are shown altogether?<br>[[input-2]]","widgets":{"input-2":{"type":"input","answer":"17"}},"hints":["Add the three bar values."],"explanation":"7 + 4 + 6 = 17."},{"content":"A reading graph shows Ana 9 books and Ben 5 books. How many more books did Ana read?<br>[[input-3]]","widgets":{"input-3":{"type":"input","answer":"4"}},"hints":["Subtract the shorter bar from the taller bar."],"explanation":"9 − 5 = 4."},{"content":"A bar reaches 15 on a scale marked 0, 5, 10, 15. What is the bar’s value?<br>[[choice-4]]","widgets":{"choice-4":{"type":"choice","options":["15","3","10","20"],"answer":[0],"explanations":["The top of the bar aligns with 15.","","",""]}},"hints":["Read the labelled scale rather than counting tick marks as ones."],"explanation":"The top of the bar aligns with 15."},{"content":"Which title best fits bars labelled cats, dogs, fish, and birds?<br>[[choice-5]]","widgets":{"choice-5":{"type":"choice","options":["Favourite Pets","Daily Temperature","Books Read","Plant Heights"],"answer":[0],"explanations":["Cats, dogs, fish, and birds can all be pet choices.","","",""]}},"hints":["Choose a title that describes all the categories."],"explanation":"Cats, dogs, fish, and birds can all be pet choices."},{"content":"A graph shows 12 sunny days and 7 rainy days. How many days are represented?<br>[[input-6]]","widgets":{"input-6":{"type":"input","answer":"19"}},"hints":["Combine both categories."],"explanation":"12 + 7 = 19 days."},{"content":"Why should bars in a standard bar graph have equal widths?<br>[[choice-7]]","widgets":{"choice-7":{"type":"choice","options":["So category values are compared by height or length fairly","So every value becomes equal","So labels are unnecessary","So the scale can change for every bar"],"answer":[0],"explanations":["Equal widths keep attention on each bar’s height or length.","","",""]}},"hints":["Only one dimension should communicate the value."],"explanation":"Equal widths keep attention on each bar’s height or length."},{"content":"A graph shows red 3, yellow 8, green 5, and blue 8. Which categories tie for greatest?<br>[[choice-8]]","widgets":{"choice-8":{"type":"choice","options":["Yellow and blue","Red and green","Yellow and green","Red and blue"],"answer":[0],"explanations":["Yellow and blue both have a value of 8.","","",""]}},"hints":["Find the categories with the same highest value."],"explanation":"Yellow and blue both have a value of 8."}],"mix":1}