If you could help me out with the missing correct answer and the blanks. please and thank you

#5

A Score on last try: 1.6 of 8 pts. See Details for more Get a similar question You can retry this question below Suppose 86% of customers at a large retail store are repeat customers A random sample of 35 customers is selected. Assuming independence, use the binomial formula or software (recommended) to answer the following questions. 1. What is the probability that, of the 35 customers selected: (Report probabilities accurate to at least4 decimal places.) a) exactly 30 are repeat customers? 0025 x b) exactly 3 are not repeat customers?' c) all of them are repeat customers? ' d) at most 28 are repeat customers?' ' e) at least 25 are repeat customers?| l f) more than half are repeat customers? ' l g) at least 25 but no more than 34 are repeat customers?' ' h) less than 24 or more than 30 are repeat customers?| I 2. Calculate the mean and standard deviation of customers that are repeat customers. Round to 2 decimal places, Mean =[ 30.1 I Standard Deviation = [ 2.05 - 3. If you expect to nd exactly 170 customers that are repeat customers, how large a sample should you select? Report the minimum sample size required as an integer. [195 I Question Help: El Video 8 Message instructor _- Score on last try: 5.6 of 8 pts. See Details for more. Next question Get a similar question You can retry this question below The following joint frequency distribution table shows responses from a sample of 232 unionized employees on how their union president hand ed a recent labour action. Employees were categorizec by age group and by their level of approval. Age Group Approve Disapprove Indifferent Total under 25 1 3 38 26 77 25 to 40 23 33 8 64 over 40 39 29 23 91 Total 75 100 57 232 Report answers accurate to at least 4 decimal places. 'I. What is the probability that a randomly selected employee: a] did n_ot approve? 0.6767 l. b) was in the over 40 age group approved?| 0.1681 l. c) was n_ot in the over 40 age group m approved?| 0.1552 l. . - v [z 5.6/8 p15 0 1-2 2 99 (D Details c) was not in the over 40 age group and approved? 0. 1552 d) was in the 25 to 40 age group or approved? | 0.5 e) was not in the 25 to 40 age group or approved? | 0.8233 f) was not 25 to 40 and did not approve? 09008 X 2. Given that an employee was in the under 25 age group, what is the probability that the employee a) disapproved? |0.4935 b) did not approve? |0.8311 3. What is the probability of selecting an employee that was in the 25 to 40 age group from a group of employees that a) approved? 0.3593 X b) was not indifferent? 0.5438 X Question Help: @Video Message instructor Submit Question1-\" Question 9 - Score on last try: 8 of 10 pts. See Details for more, Next question Get a similar question You can retry this question below Of the 58 students enrolled in a statistics class last semester, 21 worked during the semester and 30 used the recommended textbook. 10 of those who worked during the semester also used the recommended textbook. Report answers accurate to 4 decimal places. 'I. What is the probability that a randomly selected student from the class: a) did not use the recommended textbook? 0.4828 b) worked during the semester but did not use the recommended textbook? l0.1896 l. c) either worked during the semester or used the recommended textbook? d) neither worked during the semester nor used the recommended textbook? l 0.7069 l 0.2931 l- a 3/10 pts 0 2 r: 99 (D Details 2. If two students were selected from the class, one after the other and without replacement, what is the probability that: a) the second student used the recommended textbook given the first student also did? 0 9836 x b) the second student worked during the semester given the first did not? 0 775 c) both students used the recommended textbook?' 0.2632 '- d) only the first student used the recommended textbook?' 0.2541 ./ B) only one of the two students used the recommended textbook?' 0.5082 ' f) none of the two students used the recommended textbook? I 0.2287 J'- g) at least one of the two students used the recommended textbook? 0.7713 .2 l. ,,.l