Answer:
c
Step-by-step explanation:
ccccccccccccccccccccccccc
Answer:
positive 15
Step-by-step explanation:
opposite of negative is positive
Answer:
The probability distribution for x:"number of children per family for this income group" is:

Step-by-step explanation:
With the information given we have the relative frequencies of each category.
We know:

Answer:
9the only correct answer is 9
She got 45 questions correctly
Step 1 75/100= x/60
Step 2 75 * 60 = 4500
Step 3 4500/100=45
Answer is 45 questions answered correctly