Variables.
The management of the Café Corner chain runs a rewards or
loyalty program for its most frequent customers who visit
their coffee shops weekly. During a national crisis, the
chief operations officer wondered if patron traffic among this
very loyal group of customers was diminished. She gathered
information from computerized cash register records, and devised
the following probability distribution table from relative
frequency data about how many days per week these customers stopped
by and made purchases. Let x represents
the number of days per week these patrons visited the coffee shop
and bought products:
She forgot to enter the last probability. Complete this
probability distribution table and answer the following questions:
[HINT: Express all answer as percentages
using the percent
symbol. Ex: 1% or 99%.]
- Probability Distribution Of Random Variables The Management Of The Cafe Corner Chain Runs A Rewards Or Loyalty Program 1 (69.62 KiB) Viewed 96 times
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- Probability Distribution Of Random Variables The Management Of The Cafe Corner Chain Runs A Rewards Or Loyalty Program 3 (85.43 KiB) Viewed 96 times
QUESTION 13 Determine P(x > 4). X O 1 2 3 14 5 6 7 P(x) 2% 3% 5% 8% 10% 12% 20% ??? QUESTION 14 What is the chance a most frequent customer made purchases on no more than four days during the crisis? X o 1 2 3 14 5 6 17 P(x) 2% 3% 5% 8% 10% 12% 20% ??? QUESTION 15 What is the chance a most frequent customer made purchases on fewer than six days during the crisis? X 10 12 3 14 5 6 7 P(x) 2% 3% 5% 8% 10% 12% 20% ???
QUESTION 16 2 points Determine P(1 s x< 7). X O 1 2 3 14 5 6 7 P(x) 2% 3% 5% 8% 10% 12% 20% ??? QUESTION 17 2.5 points On average, how many days did these patrons stop by to make purchases during the week of the crisis? [HINTS: What is the expectation or expected value for this random variable? Express the answer rounded to the nearest whole number of days. Enter only as a counting number: report approximately 8.49 days only as 8, or approximately 9.50 days only as 10.] QUESTION 18 2 points What shape best describe the probability distribution? x 10 1 2 3 14 5 6 7 P(x) 2% 3% 5% 8% 10% 12% 20% ??? a. b. response response (a): binomial (b): - (c): rectangular shaped or uniform C. response 0 d. response (d): skewed left or negatively skewed e. response (e): skewed right or positively skewed response (f): symmetric or triangular