A box has three cards numbered 1, 2, and 3
A bag has three balls labeled A, B, and C
Alan will randomly pick a card from the box and record the number chosen.
Then he will randomly pick a ball from the bag and record the letter chosen,
Give the sample space describing all possible outcomes.
Then give all of the outcomes for the event that the letter chosen is C.
Use the format 1A to mean that the number chosen is 1 and the letter chosen is A.
If there is more than one element in the set, separate them with commas.
Sample space:
0,0
?.
Event that the letter chosen is c :

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

Plz hurry evaluate the expression a+b where a=8 and b=19

(20 points) a bank has been receiving complaints from real estate agents that their customers have been waiting too long for mortgage confirmations. the bank prides itself on its mortgage application process and decides to investigate the claims. the bank manager takes a random sample of 20 customers whose mortgage applications have been processed in the last 6 months and finds the following wait times (in days): 5, 7, 22, 4, 12, 9, 9, 14, 3, 6, 5, 15, 10, 17, 12, 10, 9, 4, 10, 13 assume that the random variable x measures the number of days a customer waits for mortgage processing at this bank, and assume that x is normally distributed. 2a. find the sample mean of this data (x ě…). 2b. find the sample variance of x. find the variance of x ě…. for (c), (d), and (e), use the appropriate t-distribution 2c. find the 90% confidence interval for the population mean (îľ). 2d. test the hypothesis that îľ is equal to 7 at the 95% confidence level. (should you do a one-tailed or two-tailed test here? ) 2e. what is the approximate p-value of this hypothesis?