I’m having trouble trying tjj on figure out this question

Classify the following triangle check all that apply

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%