7. show that each of the following families of distributions is a two-parameter exponential family as defined in exercise 6: a. the family of all normal distributions for which both the mean and the variance are unknown b. the family of all gamma distributions for which both α and β are unknown c. the family of all beta distributions for which both α and β are unknown

just sum

10 + 10 = 20

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

we can't see all full 4 options, but if this is the full option, than the very left one is correct:

-2/5 * -3 3/4

remake the question, adding a picture of all the question, or write down the full left and right answers.

x = 1/2

step-by-step explanation:

hope this !