week 2 MATH 221 ALL ANSWERS 100% CORRECT FALL-2021/2022 SOLUTION GUARANTEED GRADE A+

(CO 2) A random selection from a deck of cards selects one card. What is the probability of selecting an ace? 0.025 Correct Answer 0.077 0.50 You Answered 0.250 See text page 134 Question 2 0 / 2 pts (CO 2) What is the sample space to responses to a question whose answers are Yes or No, along with a question on location with possible answers of North, South, East, or West? Correct Answer (Yes, North)(Yes, South)(Yes, East)(Yes, West)(No, North)(No, South)(No, East)(No, West) You Answered (Yes, North)(Yes, South)(Yes, East)(Yes, West)(Yes, No)(No, North)(No, South)(No, East)(No, West) (Yes, Yes)(No, No)(North, North)(South, South)(East, East)(West, West) (Yes, No, North, South, East, West) See text page 130 Question 3 2 / 2 pts (CO 2) Consider the table below Response (number of cats owned) Frequency None 659 One 329 Two 52 Three 13 Four or more 8 What is the probability that the next person asked has only one cat? 50% 62% 5% Correct! 31% See text page 136 Question 4 2 / 2 pts (CO 2) Consider the table below Age Group Frequency 18-29 9831 30-39 7845 40-49 6869 50-59 6323 60-69 5410 70 and over 5279 What is the probability that the next person chosen will be in the 18-29 or 30-39 age groups? 37.8% 18.9% 23.7% Correct! 42.5% See text page 136 Question 5 0 / 2 pts (CO 2) Based on the CEO’s perception, a company estimates that a new product will be purchased by 32% of current customers. This is an example of which type of probability? Public probability Classical probability You Answered Empirical probability Correct Answer Subjective probability See text page 134-137 Question 6 2 / 2 pts (CO 2) Consider the table below. Age Group Frequency 18-29 9831 30-39 7845 40-49 6869 50-59 6323 60-69 5410 70 and over 5279 What is the complement of P(40-59), or P(40-59’)? 71.8% 31.7% Correct! 68.3% 64.6% See text page 138 Question 7 2 / 2 pts (CO 2) You are selling your product at a three-day event. Each day, there is a 60% chance that you will make money. What is the probability that you will make money on the first day and lose money on the second day, and make money on the third? 0.216 Correct! 0.144 0.288 0.096 Multiplication rule. See text page 139 Question 8 2 / 2 pts (CO 2) Consider the table below. Profit Loss Total Urban location 50 38 88 Rural location 61 84 125 Total 111 132 243