3. About 68% of the students at Fairview Community College favor a new policy regarding parking on campus. Suppose we are interested in the proportion of 65 students in a mathematics class who favor the policy. (a) Is the normal approximation to the proportion pˆ = r/n valid? Explain.

(b) What is the probability that the proportion of the class who favor the policy is at least two fifths?

(c) What is the probability that the proportion of the class who favor the policy is no more than 70%?

4. According to the school board, 48% of all the voters in the district support the referendum. Suppose a principal is interested in the proportions who support the referendum in a group of 38 parents.
(a) What are the values of n and p?

(b) What is the probability that the proportion of the group who support the referendum is at least two thirds?

(c) What is the probability that the proportion of the group who support the referendum is no more than 20%?

Calculate the monthly payment for a $2,500 loan at 9% annual interest for two years. use the formula, m = pm(1 + m)^na/(1 + m)^na - 1 as needed. a. $85.15 b. $105.40 c. $114.21 d. $125.72 calculate the total payback for a $2,500 loan at 9% annual interest for two years. use the formula, m = pm(1 + m)^na/(1 + m)^na - 1 as needed. a. $1,021.80 b. $1,370.52 c. $2,043.60 d. $2,741.04 alice wants to use the stack method to pay down her debts listed in the table below. if she applies an extra $150 a month to her debts, what will be the second debt she targets to pay off and what will be the monthly amount she applies to it? debts interest rate minimum monthly payment debt 1 5.5% $75 debt 2 2.75% $250 debt 3 13.25% $150 a. debt 1, $225 b. debt 1, $375 c. debt 3, $300 d. debt 3, $400 at greenbrier bank, checking account customers earn 0.8% interest a month on their account balances, pay a $0.10 service fee per check, and pay a monthly $2.00 financial charge. calculate the income earned on the checking account for a customer who writes 21 checks and maintains a minimum balance of $1,210. a. $4.27 b. $5.58 c. $6.42 d. $7.35 which statement most accurately compares debit and credit cards? a. both cards deduct from funds currently in a checking account. b. both cards use funds temporarily loaned from a financial institution. c. both cards are processed by the same card system services. d. both carry the risk of overdraft.

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm