In a particular chi-square goodness-of-fit test there are four categories and 230 observations. Use the 0.01 significance level.
Question 4
How many degrees of freedom are there?
2
3
4
4
5

Question 5
What is the critical value of chi-square?
9.210
11.345
13.277
15.086

The box plot shows the number of raisins found in sample boxes from brand c and from brand d. each box weighs the same. what could you infer by comparing the range of the data for each brand? a) a box of raisins from either brand has about 28 raisins. b) the number of raisins in boxes from brand c varies more than boxes from brand d. c) the number of raisins in boxes from brand d varies more than boxes from brand c. d) the number of raisins in boxes from either brand varies about the same.

Anyone know? will mark brainliest if correct

Which of the following graphs could represent a cubic function?