Question 21 4 points Save Answer You band has written 12 songs and you plan to record 10 of them for a CD. In how many ways can you arrange the songs on the CD? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial V 10pt V V A V E E x2 X2 ABC V X EXE T ( O ? + P O WORDS POWERED BY TINYQuestion 22 United Airlines fight 470 from Denver to St. Louis has an on-time performance represented in the table. In the probability distribution below, x = the number of on-time fights and Pix] = the probability for 4 independent flights. Which histogram impresents the probability distribution? 0.4 0.8 Pil 0.2 4.15 Numberol as Time lights 0.35 2 Number ol as time lights 0.1. Numberof as time lights 0.25 Taj 03 0.15 TO 0.05Question 23 4 points Save Answer At Cape College, the business students run an investment club. Each fall they create investment portfolios in multiples of $1000 each. Records from the past seveal years show the following probabilities of profits (rounded to the nearest $50). In the table below, x = profit per $1000 investment, and P(x) is the probability of earning that profit. X 0 50 100 150 200 P( X) 10.15 0.35 0.25 1 0.20 0.05 Which histogram represents the probability distribution? Histogram A Histogram B 0.4 0.4 0.35 0.35 0.3 0.3 0.25 0.25 P(x) 0.2 P(x) 0.2 0.15 0.15 0.1 0.1 0.05 0.05 0 0 50 100 150 200 0 50 100 150 200 Profits (to the nearest $50) Profits (to the nearest $50) O Histogram A O Histogram B O Both A and B O Neither A nor BQuestion 2-1- 4 points Dorothy leads wilderness expeditions. She has found that 15% of those who attend a promotional meeting will sign up for an expedition at the meeting. If 20 people attend a meeting, what is the probability that four or more of them will sign up? 0 0.643 O 0.170 O 0.182 O 0.352 Question 25 4 points Save Answer It is claimed that 70% of the cars on the Valley Highway are going faster than 65 miles per hour (the speed limit on the highway is 70 MPH). A random sample of 12 cars was observed under normal driving conditions. What is the probability that exactly 5 of them were going more than 65 MPH? O 0.029 O 0.158 O 0.084 O 0.009