It is known from census data that for a particular hospital setting that 10% of wards have no children, 25% have one child, 50% hare two children, 10% have three children, and 5% have
four children
a) Construct the probability distribution ​

6.9

step-by-step explanation:

simple math really

6 1/2 times 0.6 = 3.9

but if you are just doing 6 and not 6 1/2 then the answer is 3.6

c is the correct answer

step-by-step explanation:

given the equation is 8+9z=-6, the first step would be to subtract the 8 from both sides:

8+9z-8=-6-8

since 8 minus 8 = 0, this would cancel out the 8. and since -6 minus 8 equals -14, the equation would look like this

9z = -14